BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Hard thermal loops and soft deconfinement in the EoS for quark-had ron matter DTSTART;VALUE=DATE-TIME:20230531T152500Z DTEND;VALUE=DATE-TIME:20230531T155000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-402@indico.ipb.ac.rs DESCRIPTION:Speakers: David Blaschke (University of Wroclaw)\nWe describe multiquark clusters in quark matter within a Beth-Uhlenbeck approach in a background gluon field that is coupled to the underlying chiral quark dyna mics using the Polyakov-gauge and an effective potential for the traced Po lyakov-loop. A higher multiquark cluster of size n is described as a binar y composite of smaller subclusters n1 and n2 (n1+n2=n ) with a bound state and scattering state spectrum. For the corresponding cluster-cluster phas e shifts we use two simple ansätze that capture the Mott dissociation of quark clusters as a function of temperature and chemical potential\, the s oft deconfinement. We compare the simple ""step-up-step-down"" model that ignores continuum correlations with an improved model contains them in a g eneric form. In order to explain the model\, we restrict ourselves here to the cases where 1≤n≤6. A striking result is the suppression of the ab undance of colored multiquark clusters at low temperatures by the coupling to the Polyakov loop. This is understood in close analogy to the suppress ion of quark distributions by the same mechanism and we derive here the co rresponding Polyakov-loop generalized distribution functions of n-quark cl usters. For a successful comparison with lattice QCD thermodynamics it is important to include perturbative QCD contributions\, the hard thermal loo ps.\n\nhttps://events.saifa.rs/event/554/contributions/402/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/402/ END:VEVENT BEGIN:VEVENT SUMMARY:Heavy Quark Diffusion coefficient in light of Gribov-Zwanziger act ion DTSTART;VALUE=DATE-TIME:20230531T132500Z DTEND;VALUE=DATE-TIME:20230531T134500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-399@indico.ipb.ac.rs DESCRIPTION:Speakers: Aritra Bandyopadhyay (Heidelberg University)\nThe he avy quark momentum diffusion coefficient (𝜅) is one of the most importa nt ingredients for the Langevin description of the heavy quark dynamics. I n the temperature regime relevant for the heavy ion collision phenomenolog y\, there exists a substantial difference between the lattice estimations of 𝜅 and the corresponding leading order (LO) result from the hard ther mal loop (HTL) perturbation theory. Moreover\, the indication of poor conv ergence in the next-to-leading order (NLO) perturbative analysis has motiv ated the development of several approaches to incorporate the non-perturba tive effects in the heavy quark phenomenology. In this work [1]\, we estim ate the heavy quark diffusion coefficient based on the Gribov-Zwanziger pr escription. In this framework\, the gluon propagator\, depends on the temp erature dependent Gribov mass parameter which has been obtained self consi stently from the one loop gap equation. Incorporating this modified gluon propagator in the leading order analysis\, we\nfind a reasonable agreement with the existing lattice estimations of 𝜅 within the model uncertaint ies.\n[1] Estimation of the diffusion coefficient of heavy quarks in light of Gribov-Zwanziger action \; Sadaf Madni\, Arghya Mukherjee\, Aritra Ban dyopadhyay\, Najmul Haque\; Published in: Phys.Lett.B 838 (2023) 137714\n\ nhttps://events.saifa.rs/event/554/contributions/399/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/399/ END:VEVENT BEGIN:VEVENT SUMMARY:Constraining the QGP properties using heavy quarks DTSTART;VALUE=DATE-TIME:20230531T141500Z DTEND;VALUE=DATE-TIME:20230531T144000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-406@indico.ipb.ac.rs DESCRIPTION:Speakers: Shanshan Cao ()\nHeavy quarks serve as a clean probe of the color-deconfined QGP matter produced in relativistic heavy-ion col lisions. We develop a unified perturbative and non-perturbative Boltzmann transport model for studying the elastic and inelastic scatterings of heav y quarks inside the QGP. A generalized Cornell-type potential is implement ed\, which incorporates both the short-range Yukawa interaction and the lo ng-range color confining interaction. By combining this new approach to a (3+1)-dimensional viscous hydrodynamic model for the QGP evolution and a h ybrid fragmentation-coalescence model for heavy quark hadronization\, we o btain a satisfactory description of nuclear modification of heavy flavor o bservables from low to intermediate to high transverse momenta. From the m odel-to-data comparison\, we extract the in-medium heavy quark potential f rom open heavy flavor observables for the first time\, which is shown in a greement with the lattice QCD calculation. And by combining this Boltzmann transport model with a quasi-particle description of the QGP\, we perform a first extraction of the Equation of State of the QGP using the open hea vy flavor data\, which is shown consistent with the lattice QCD result as well.\n\nhttps://events.saifa.rs/event/554/contributions/406/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/406/ END:VEVENT BEGIN:VEVENT SUMMARY:Higher-order moments of the elliptic flow distribution in 5.02 TeV Pb-Pb collisions DTSTART;VALUE=DATE-TIME:20230529T144000Z DTEND;VALUE=DATE-TIME:20230529T150000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-405@indico.ipb.ac.rs DESCRIPTION:Speakers: Jovan Milosevic (Vinča Institute of Nuclear Science s\, Serbia)\nThe hydrodynamic flow-like behavior of charged hadrons in hig h-energy lead-lead collisions is studied through their multiparticle corre lations. The elliptic anisotropy harmonic values based on different orders of multiparticle cumulants\, v2{2k}\, are measured up to the tenth order (k = 5) as functions of the collision centrality at a nucleon-nucleon cent er-of-mass energy of 5.02 TeV. The data were obtained by the CMS experimen t at the LHC with an integrated luminosity of 0.607 nb-1.\nA fine splittin g is observed between the coefficients\, with v2{2} > v2{4}≳ v2{6} ≳ v 2{8} ≳ v2{10}. The subtle differences in the higher-order cumulants allo w for a precise determination of the underlying hydrodynamics. Based on th ese results\, centrality-dependent moments for the fluctuation-driven even t-by-event v2 distribution are determined\, including the skewness\, the k urtosis and\, for the first time\, the superskewness. Assuming a hydrodyna mic expansion of the produced medium\, these moments directly probe the in itial-state geometry in high-energy nucleus-nucleus collisions.\n\nhttps:/ /events.saifa.rs/event/554/contributions/405/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/405/ END:VEVENT BEGIN:VEVENT SUMMARY:Low-pt and high-pt probes in the EPOS4 framework DTSTART;VALUE=DATE-TIME:20230529T101000Z DTEND;VALUE=DATE-TIME:20230529T103500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-404@indico.ipb.ac.rs DESCRIPTION:Speakers: Klaus Werner (Subatech\, University of Nantes\, Fra nce)\nEPOS4 is a (recently released) multipurpose event generator for simu lating high energy proton-proton and nucleus-nucleus collisions\, which al lows to treat within the same formalism very high pt processes and also lo w-pt phenomena. We will first present the basic ideas\, and then discuss a pplications concerning high-pt particle production as well as collective e ffects in high-multiplicity pp events\, based on light and heavy flavor pa rticles.\n\nhttps://events.saifa.rs/event/554/contributions/404/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/404/ END:VEVENT BEGIN:VEVENT SUMMARY:A New Model for Jet Energy Loss in Heavy Ion Collisions DTSTART;VALUE=DATE-TIME:20230530T080500Z DTEND;VALUE=DATE-TIME:20230530T083000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-376@indico.ipb.ac.rs DESCRIPTION:Speakers: Iurii Karpenko (Czech Technical University in Prague )\nWe present a new model for jet quenching from coherent radiation in a b rick medium. The jet energy loss is simulated as a perturbative final-stat e vacuum parton shower followed by a medium-induced shower originating fro m elastic and radiative collisions with the medium constituents. Coherency is achieved by starting with trial gluons that acts as field dressing of the initial jet parton. These are formed according to a Gunion-Bertsch see d. The QCD version of the LPM effect is attained by increasing the phase o f the trial gluons through elastic scatterings with the medium. Above a ph ase threshold\, the trial gluon will be realised and can produce coherent radiation themselves.\nThe model has been implemented in a Monte Carlo cod e and has been validated by successfully reproducing the BDMPS-Z predictio n for the energy spectrum. The realistic case with minimal assumptions are also produced and shown.\n\nhttps://events.saifa.rs/event/554/contributio ns/376/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/376/ END:VEVENT BEGIN:VEVENT SUMMARY:Deep learning predicted elliptic flow of identified particles in H IC at the RHIC and LHC DTSTART;VALUE=DATE-TIME:20230529T152500Z DTEND;VALUE=DATE-TIME:20230529T155000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-371@indico.ipb.ac.rs DESCRIPTION:Speakers: Gargely Gabor Barnaföldi (Wigner Research Centre f or Physics\, Hungary)\nRecent developments on a deep learning feed-forward network for estimating elliptic flow (v2) coefficients in heavy-ion colli sions have shown us the prediction power of this technique. The success of the model is mainly the estimation of v2 from final state particle kinema tic information and learning the centrality and the transverse momentum (p T) dependence of v2. The deep learning model is trained with Pb-Pb collisi ons at 5.02 TeV minimum bias events simulated with a multiphase transport model (AMPT). We extend this work to estimate v2 for light-flavor identifi ed particles such as π±π±\, K±K±\, and p+pˉp+pˉ in heavy-ion colli sions at RHIC and LHC energies. The number of constituent quark (NCQ) scal ing is also shown. The evolution of pT-crossing point of v2(pT)\, depictin g a change in meson- baryon elliptic flow at intermediate-pT\, is studied for various collision systems and energies. The model is further evaluated by training it for different pT regions. These results are compared with the available experimental data wherever possible.\n\nSee: [1] Physical Re view D 105\, 114022 (2022)\n [2] https://arxiv.org/abs/2301.10426"\n\n https://events.saifa.rs/event/554/contributions/371/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/371/ END:VEVENT BEGIN:VEVENT SUMMARY:Heavy flavor measurements in STAR experiment DTSTART;VALUE=DATE-TIME:20230531T093500Z DTEND;VALUE=DATE-TIME:20230531T100000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-394@indico.ipb.ac.rs DESCRIPTION:Speakers: Jaroslav Bielčík (Czech Technical University in P rague\, Czech Republic)\nIn ultra-relativistic heavy-ion collisions\, a de nse and hot QCD medium\, the Quark-Gluon Plasma (QGP) is created. Heavy qu arks (charm and beauty) are produced dominantly in hard partonic scatterin gs in the early stage of the collisions and experience the whole medium ev olution. Measurements of open heavy-flavor hadron production provide infor mation on the transport properties of the QGP\, the degree of the heavy qu ark thermalization\, and the hadronization mechanism. The measurements of quarkonium production in heavy-ion collisions give us insight into the col or screening mechanism\, which causes the quarkonium bound states to disso ciate in the QGP\, and thermodynamic properties of the QGP. In this talk\, we will report recent results on open heavy-flavor and quarkonium product ion in the STAR experiment at RHIC. Measurements of the J/ψ suppression a nd elliptic flow in isobar (Ru+Ru and Zr+Zr) collisions at 200 GeV\, as w ell as studies of the system size and energy dependence of the J/ψ suppre ssion will be shown. Production o quarkonia in p+p collisions\, including J/ψ production in jets and with jet activity\, will also be presented. Mo reover\, we will show measurements of electrons from open heavy-flavor had ron decays\, and D0\,D±\, Ds and Λc production in Au+Au collisions at 200 GeV. The extracted total charm quark production cross section per nucl eon-nucleon collision in Au+Au collisions will be reported. We will also p resent the measurements of the production yield and radial profile of D0- tagged jets in Au+Au collisions at 200 GeV. Prospects of heavy-flavor meas urements in STAR with high luminosity Au+Au RHIC Runs in 2023 and 2025 at 200 GeV will be also discussed.\n\nhttps://events.saifa.rs/event/554/cont ributions/394/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/394/ END:VEVENT BEGIN:VEVENT SUMMARY:Exploring jet transport coefficients by elastic and radiative scat terings in the sQGP DTSTART;VALUE=DATE-TIME:20230530T072500Z DTEND;VALUE=DATE-TIME:20230530T074500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-374@indico.ipb.ac.rs DESCRIPTION:Speakers: Ilia Grishmanovskii (ITP\, Frankfurt)\nWe study the interaction of leading jet partons in a strongly interacting quark-gluon p lasma (sQGP) medium based on the effective dynamical quasi-particle model (DQPM). The DQPM describes the non-perturbative nature of the sQGP at fini te temperature T and baryon chemical potential μB based on a propagator r epresentation of massive off-shell partons (quarks and gluons) whose prope rties (characterized by spectral functions with T\,μB dependent masses an d widths) are adjusted to reproduce the lQCD EoS for the QGP in thermodyna mic equilibrium. We present the results for the jet transport coefficients \, i.e. the transverse momentum transfer squared per unit length q̂ and t he energy loss per unit length ΔE=dE/dx in the QGP and investigate their dependence on the temperature T and baryon chemical potential μB as well as on jet properties such as the leading jet parton momentum\, mass\, flav or\, and the choice of the strong coupling constant. In this work both ela stic and radiative scattering processes of leading jet parton with the sQG P partons are considered. We compute the cross sections and transport coef ficients and compare the contributions from elastic partonic scattering an d radiative processes for the emission of massive gluons. We present a com parison of our results for the elastic energy loss in the sQGP medium with pQCD results as well as with lattice QCD and also with estimates for q̂ by the JET and JETSCAPE Collaborations based on a comparison of hydrodynam ical calculations with experimental heavy-ion data.\n\nhttps://events.saif a.rs/event/554/contributions/374/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/374/ END:VEVENT BEGIN:VEVENT SUMMARY:Light Nuclei production in Coalescence Model DTSTART;VALUE=DATE-TIME:20230531T150500Z DTEND;VALUE=DATE-TIME:20230531T152500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-401@indico.ipb.ac.rs DESCRIPTION:Speakers: Shanjin Wu (Peking University)\nAs a hadronization m odel in relativistic heavy-ion collisions\, coalescence (recombination) mo del has achieved great success in the description of the production of had ron and light nuclei. This talk focuses on light-nuclei production within the framework of the coalescence model. By employing the characteristic fu nction of the phase space density\, we derive the yield of light nuclei in terms of various orders of cumulants for the density distribution functio n. We found that the leading terms of the phase-space cumulants in the yie ld nuclei share a similar form and could be canceled out in light-nuclei r atio\, whereas the higher order ones (non-Gaussian shaped density profile) remain and play an important role in the interpretation of the behavior o f light nuclei yield ratio. In addition\, the critical correlation contrib uted to the higher-order phase-space cumulants will also be discussed.\n\n https://events.saifa.rs/event/554/contributions/401/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/401/ END:VEVENT BEGIN:VEVENT SUMMARY:The post-mortem QGP analysis: the statistical hadronization model for heavy quarks DTSTART;VALUE=DATE-TIME:20230531T144000Z DTEND;VALUE=DATE-TIME:20230531T150500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-400@indico.ipb.ac.rs DESCRIPTION:Speakers: Anton Andronic (University of Muenster\, Germany)\n The statistical hadronization model is very successful in reproducing the experimental data in Pb-Pb collisions\, both for light-quark and heavy-qua rk hadrons. In particular the detailed comparisons for charmonium lead us to infer quasi-complete thermalization of charm quarks in QGP and concurre nt hadronization with the lighter quarks. The large yield measured for the Λc baryon at the LHC can only be explained in the model by assuming a la rge number of missing charm-quark baryon resonances.\nFor the beauty quark s\, the model comparison to data suggests incomplete thermalization\, not surprisingly\, given the significantly-heavier b quark.\n\nhttps://events. saifa.rs/event/554/contributions/400/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/400/ END:VEVENT BEGIN:VEVENT SUMMARY:Challenges in quarkonium and exotic-state production: from small t o large systems DTSTART;VALUE=DATE-TIME:20230531T130000Z DTEND;VALUE=DATE-TIME:20230531T132500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-398@indico.ipb.ac.rs DESCRIPTION:Speakers: Elena G. Ferreiro (Universidad de Santiago de Compos tela)\nThe behavior of quarkonia and open-heavy flavour hadrons in hadroni c collisions provide a unique testing ground for understanding quantum chr omodynamics (QCD). Although there has been significant progress\, our unde rstanding of hadronic collisions has been challenged by the observation of intriguing effects in high-multiplicity proton-proton and proton-Pb colli sions\, such as the discovery of correlations and the suppression of quark onium excited states in those systems. Those phenomena show a smooth conti nuation of heavy-ion features to small systems and lower density\, whose o rigin is still not clear. Two serious contenders remain today as possible explanations\, one based on initial-state correlations and another that re quires final-state interactions to be at play.\nIn this talk\, I will pres ent different results\, considering the possibility of final-state interac tions for the explanation of quarkonium excited states. Moreover\, the str ucture of exotic resonances that do not trivially fit the usual quark mode l expectations has been a matter of intense scientific debate during the l ast two decades. I will show that a possible way of estimating the nature of these states is to study their behavior when immersed in QCD matter.\n\ nhttps://events.saifa.rs/event/554/contributions/398/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/398/ END:VEVENT BEGIN:VEVENT SUMMARY:A new microscopic approach to understand the quarkonium production in pp and AA collisions DTSTART;VALUE=DATE-TIME:20230531T121000Z DTEND;VALUE=DATE-TIME:20230531T123500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-397@indico.ipb.ac.rs DESCRIPTION:Speakers: Joerg Aichelin (Subatech - laboratoire de physique subatomique et des technologies associées\, France)\nWe present the first microscopic model\, which allows to describe the formation of charmonia i n ultrarelativistic heavy ion collisions. We follow the heavy quarks from their initial production in hard collisions\, followed by their passage t hrough the quark gluon plasma where the heavy quarks interact with the pla sma constituents and among themselves with a potential obtained by lattice gauge calculations. We apply the density matrix formalism to study how ch armonia disintegrate and the heavy quarks form charmonia during the passag e through the QGP. We finally compare the results with data.\n\nhttps://ev ents.saifa.rs/event/554/contributions/397/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/397/ END:VEVENT BEGIN:VEVENT SUMMARY:Recent developments in the theoretical modelling of quarkonia prod uction DTSTART;VALUE=DATE-TIME:20230531T123500Z DTEND;VALUE=DATE-TIME:20230531T130000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-396@indico.ipb.ac.rs DESCRIPTION:Speakers: Pol-Bernard Gossiaux (IMT Atlantique\, Subatech - la boratoire de physique subatomique et des technologies associées\, France) \nThe global picture of quarkonia production in heavy ions collisions has recently reached some good consensus in the community.\nHowever\, before t urning it into a precision tool to better characterize QGP\, some theoreti cal challenges still need to be met.\nIn this talk\, I will review some of the recent progress achieved for the description of quarkonia production\ , focusing on both fully quantum approaches as well as semi-classical trea tments.\n\nhttps://events.saifa.rs/event/554/contributions/396/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/396/ END:VEVENT BEGIN:VEVENT SUMMARY:Missing beauty of proton-proton interactions DTSTART;VALUE=DATE-TIME:20230531T100000Z DTEND;VALUE=DATE-TIME:20230531T102500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-395@indico.ipb.ac.rs DESCRIPTION:Speakers: Alexander Milov (Weizmann Institute of Science)\nMul tiparton interactions in proton-proton collisions have long been a topic o f great interest. A new look at them has begun to emerge from work being d one to understand the dynamics of ‘small systems’\, a topic that is ta king center stage in the physics of relativistic heavy-ion interactions. N umerous studies conducted at the LHC and lower energies reveal that proton -proton collisions at high energy form a system in which final state inter actions substantially impact experimentally observable quantities in the s oft sector. However\, until recently\, no evidence was shown that final st ate interactions could also affect observables produced in the hard scatte ring processes. Studies performed by the LHC experiments and in [PRD 107\, 014012] present strong evidence that the final state interactions in prot on-proton collisions have a drastic impact on the b-quark bound states pro duction\, whose yields may be reduced by more than a factor of two.\n\nhtt ps://events.saifa.rs/event/554/contributions/395/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/395/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of the heavy quark hadronisation from small to large systems with ALICE DTSTART;VALUE=DATE-TIME:20230531T091000Z DTEND;VALUE=DATE-TIME:20230531T093500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-393@indico.ipb.ac.rs DESCRIPTION:Speakers: Fabio Colamaria (Istituto Nazionale di Fisica Nucle are - Sezione di Bari\, Italy)\nThe production of heavy-flavour hadrons i n hadronic collisions can be calculated with a factorisation approach\, as a product of parton distribution functions (PDFs)\, partonic hard- scatte ring cross section\, and parton-to-hadron fragmentation functions\, assume d to be universal among different collision systems. Recent measurements of baryon-to-meson production yield ratios at the LHC\, observed to be enh anced compared to measurements in e+e– and e+p collisions\, challenged t his assumption\, suggesting a modified hadronization of heavy quarks in h adronic collisions with respect to in-vacuum fragmentation.\nAdditional mo difications to the heavy-quark hadronisation process are expected in heav y-ion collisions\, where the large density of deconfined quarks may favou r the formation of hadrons via the coalescence mechanism\, the increased a bundance of strange quarks could enhance the production of charm-strange h adrons\, and the presence of collective motion of the medium can affect t he momentum distribution of the produced hadrons.\nIn this presentation\, a selection of recent results from the ALICE Collaboration on prompt and n on-prompt charm meson and baryon production in pp\, p-Pb and Pb-Pb collisi ons\, as well as baryon-to-meson ratios for several charm-baryon species\, will be shown. The measurements will be compared to results available fro m the other LHC Collaborations\, as well as to model calculations with di fferent modeling of the heavy-quark hadronisation.\n\nhttps://events.saif a.rs/event/554/contributions/393/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/393/ END:VEVENT BEGIN:VEVENT SUMMARY:Measuring open/hidden charm at SPS energy in the NA60+ experiment DTSTART;VALUE=DATE-TIME:20230531T082000Z DTEND;VALUE=DATE-TIME:20230531T084000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-392@indico.ipb.ac.rs DESCRIPTION:Speakers: Enrico Scomparin (INFN Sezione di Torino - Istituto Nazionale di Fisica Nucleare\, Italy)\nHeavy quark production represents one of the main tools for the QGP characterization\, as shown by the vast amount of results obtained in nuclear collisions at collider energies. At fixed-target energies\, these measurements become more difficult because o f the vanishing production cross sections\, and for the moment only charmo nium results at top SPS energy (sqrt(s_NN)=17 GeV) are available. A new ex periment at the CERN SPS is being proposed\, to carry out measurements dow n to sqrt(s_NN)~6 GeV. In this talk I will review the physics topics that can be addressed in this energy domain and show the results of the corresp onding physics performance studies. The status of advance of the experimen t preparation will also be briefly described.\n\nhttps://events.saifa.rs/e vent/554/contributions/392/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/392/ END:VEVENT BEGIN:VEVENT SUMMARY:Nuclear shape imaging in high-energy nuclear collisions DTSTART;VALUE=DATE-TIME:20230531T075500Z DTEND;VALUE=DATE-TIME:20230531T082000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-391@indico.ipb.ac.rs DESCRIPTION:Speakers: Jiangyong Jia (Stony Brook University\, US)\nHydrod ynamic simulations of the quark-gluon plasma (QGP) permit us not only to g auge the transport properties of hot QCD matter from data\, but also to co nstrain the conditions that set the stage for the formation of such matter . Recent measurements from RHIC and LHC demonstrate that the QGP initial c ondition is impacted by the shape and radial structure of the colliding nu clei. Based on a recent community white paper (arXiv:2209.11042)\, we disc uss physics opportunities for nuclear structure and QGP studies offered by high-energy nuclear collisions\, with an emphasis on isobar collisions to clean access to the structural properties of the colliding ions. Recent u pdates from the INT program 23-1a dedicated to this topic will also be cov ered.\n\nhttps://events.saifa.rs/event/554/contributions/391/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/391/ END:VEVENT BEGIN:VEVENT SUMMARY:ALICE upgrades DTSTART;VALUE=DATE-TIME:20230531T073000Z DTEND;VALUE=DATE-TIME:20230531T075500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-390@indico.ipb.ac.rs DESCRIPTION:Speakers: Giuseppe Bruno (Dipartimento di fisica - Politecnic o di Bari and INFN Bari\, Italy)\nThe ALICE collaboration pursues several upgrades to further extend the reach of heavy-ion physics at the LHC. For LHC Run 4 (2029-2032)\, ALICE is pioneering the use of bent\, wafer-scale pixel sensors to produce truly cylindrical tracking layers with very low m aterial budget to replace the three innermost layers of the inner tracking system. The resulting improvement in pointing resolution will allow new m easurements of heavy-flavour hadrons and dielectrons. In addition\, a Forw ard Calorimeter (FoCal) system combines a high-granularity electromagnetic silicon-tungsten calorimeter with excellent two-shower separation for neu tral pion reconstruction with a conventional hadronic calorimeter for phot on isolation. Direct photon measurements with FoCal will provide unique co nstraints on the low-x gluon structure of protons and nuclei via forward m easurements of direct photons.\nFurthermore “ALICE 3” is proposed as t he next-generation experiment for LHC Run5 and beyond to address unresolve d questions about the quark-gluon plasma by precise measurements of heavy- flavour probes as well as electromagnetic radiation in heavy-ion collision s. In order to achieve the best possible pointing resolution a concept for the installation of a high-resolution vertex tracker in the beampipe is b eing developed. It is surrounded by a silicon-pixel tracker covering rough ly 8 units of pseudorapidity. To achieve the required particle identificat ion performance\, a combination of a time-of-flight system and a Ring-Imag ing Cherenkov detector is foreseen. Further detectors\, such as an electro magnetic calorimeter\, a muon identifier\, and a dedicated forward detecto r for ultra-soft photons\, are being studied. \nIn this presentation\, I w ill outline the detector concept as guided by the desired physics reach.\n \nhttps://events.saifa.rs/event/554/contributions/390/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/390/ END:VEVENT BEGIN:VEVENT SUMMARY:Exploring the sQGP with sPHENIX DTSTART;VALUE=DATE-TIME:20230531T070000Z DTEND;VALUE=DATE-TIME:20230531T073000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-389@indico.ipb.ac.rs DESCRIPTION:Speakers: William A. Zajc (Columbia University\, US)\nThe stro ngly-coupled nature of the quark-gluon plasma was discovered nearly twenty years ago. Since that time\, we have learned a great deal about the sQGP and its transport properties\, but the question of how quarks and gluons\, the microscopic degrees of freedom\, produce the near-perfect liquid pro perties observed in the bulk remains open. The sPHENIX experiment\, the fi rst collider detector to be built in the U.S. in over two decades\, is des igned to investigate the sQGP with jets and heavy flavor probes to reveal these essential aspects of thermal QCD matter. I will present both the int ended sPHENIX program\, and the experiment's current status\, with first beam expected at essentially the time of this workshop.\n\nhttps://events. saifa.rs/event/554/contributions/389/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/389/ END:VEVENT BEGIN:VEVENT SUMMARY:Relativistic magnetohydrodynamics for spin polarized media DTSTART;VALUE=DATE-TIME:20230530T150000Z DTEND;VALUE=DATE-TIME:20230530T152500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-387@indico.ipb.ac.rs DESCRIPTION:Speakers: Radoslaw Ryblewski (Institute of Nuclear Physics Pol ish Academy of Sciences)\nThe kinetic-theory-wise formulation of relativis tic dissipative nonresistive magnetohydrodynamics for massive spin-half pa rticles in the presence of a magnetic field is presented. Using a relaxati on-time approximation for the collision kernel of the underlying relativis tic Boltzmann equation the nonequilibrium corrections to the phase-space d istribution function and multiple transport coefficients are calculated. T he emergence of the well-known Einstein–de Haas and Barnett effects from the resulting framework is shown. It is demonstrated that the coupling be tween spin and the magnetic field appears in the first order of the gradie nt expansion.\nReference: Phys. Rev. Lett. 129 (2022) 19\, 192301\n\nhttps ://events.saifa.rs/event/554/contributions/387/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/387/ END:VEVENT BEGIN:VEVENT SUMMARY:Signatures of Baryonic spin Hall effect in hot and dense QCD matte r DTSTART;VALUE=DATE-TIME:20230530T144000Z DTEND;VALUE=DATE-TIME:20230530T150000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-386@indico.ipb.ac.rs DESCRIPTION:Speakers: Baochi Fu (Peking University\, China)\nThe spin Hal l effect (SHE) is a generation of spin polarization for moving spin carrie rs in materials under an external electric field and has been observed in semiconductors\, metals\, and insulators at or below room temperature. Rec ent theoretical analyses show that spin Hall current can be induced by the baryon chemical potential gradient which plays the role of the analogous electric field and which becomes sizable in the fireballs created in heavy -ion collisions at beam energy of O(10) GeV. In this talk\, we focus on th is important mechanism and predict the signature of the SHE using a (3+1) D viscous hydrodynamic model MUSIC with AMPT initial condition. We propose to use the second Fourier coefficients of the net spin polarization of La mbda hyperon as sensitive probes to search for the SHE. Those SHE observab les show a qualitative difference in both the sign and beam energy depende nce for the situations with and without the SHE. Future experimental obser vation of these distinct qualitative features would provide strong evidenc e for the existence of the SHE in the hot and dense QCD matter at trillion s of degrees.\n\nhttps://events.saifa.rs/event/554/contributions/386/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/386/ END:VEVENT BEGIN:VEVENT SUMMARY:Exploring the phase diagram with femtoscopy and Lévy sources from SPS to RHIC and LHC DTSTART;VALUE=DATE-TIME:20230530T141500Z DTEND;VALUE=DATE-TIME:20230530T144000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-385@indico.ipb.ac.rs DESCRIPTION:Speakers: Mate Csanad (Eotvos Lorand University)\nExploring th e space-time extent of particle production is an important goal of heavy-i on physics\, and substantial effort has been made in order to understand t he underlying physics behind the experimental observations of non-Gaussian behavior\, in particular with respect to connections to the phase diagram . In experiments\, femtoscopic (momentum) correlations are utilized to gai n information about the space-time geometry of the particle emitting sourc e. The correlation functions are characterized by the Lévy exponent alpha and the Lévy scale R\, as well as correlation strength lambda. The trans verse mass dependence of these parameters was recently explored from SPS t hrough RHIC to LHC. In this talk an overview of these results is presented \, with implications on the origins of non-Gaussian behavior\, particle pr oduction mechanisms\, as well as possible searches for the critical point. \n\nhttps://events.saifa.rs/event/554/contributions/385/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/385/ END:VEVENT BEGIN:VEVENT SUMMARY:MUFFIN: Next-generation multi-fluid hydrodynamic model for RHIC BE S DTSTART;VALUE=DATE-TIME:20230530T132500Z DTEND;VALUE=DATE-TIME:20230530T134500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-384@indico.ipb.ac.rs DESCRIPTION:Speakers: Jakub Cimerman (Matej Bel University)\nThe hydrodyna mic modelling of heavy-ion collisions at energies from few to tens of GeV per NN pair brings new challenges as compared to simulations at top RHIC o r LHC energies. The contraction of the incoming nuclei is much weaker resu lting in a long inter-penetration phase and a more complex initial-state g eometry. Conventional hydrodynamic models\, where the fluid phase starts a t a fixed proper time τ0\, therefore miss the compression stage of collis ion and may be therefore less sensitive to the EoS of the medium. Multi-fl uid dynamics treats the incoming nuclei as two baryon-rich droplets of col d nuclear fluid creating a third baryon-free fluid from the friction betwe en the two colliding fluids.\nWe present MUFFIN (MUlti Fluid simulation fo r Fast IoN collisions)\, a next-generation event-by-event three-fluid dyna mic model to simulate heavy-ion collisions at RHIC BES\, newly reimplement ed with the use of 3+1 dimensional relativistic viscous hydrodynamic code vHLLE. We discuss the challenges in constructing the approach and present benchmark calculations for Au-Au collisions at different RHIC BES energies .\n\nhttps://events.saifa.rs/event/554/contributions/384/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/384/ END:VEVENT BEGIN:VEVENT SUMMARY:Transport coefficients and comparison of the QGP evolution in tran sport and hydro approach DTSTART;VALUE=DATE-TIME:20230530T130500Z DTEND;VALUE=DATE-TIME:20230530T132500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-383@indico.ipb.ac.rs DESCRIPTION:Speakers: Olga Soloveva (Helmholtz Research Academy Hesse for FAIR (HFHF) Goethe University Frankfurt\, Germany)\nWe study equilibrium as well as out-of-equilibrium properties of the strongly interacting QGP m edium under extreme conditions of high temperature T and high baryon densi ties or baryon chemical potentials μB within a kinetic approach. We prese nt the thermodynamic and transport properties of the QGP close to equilibr ium in the framework of effective models with Nf=3 active quark flavors su ch as the Polyakov extended Nambu-Jona Lasinio (PNJL) and dynamical quasip article model with the CEP (DQPM-CP). Considering the transport coefficien ts and the EoS of the QGP phase\, we compare our results with various resu lts from the literature.\nMoreover\, we find a good agreement between resu lting transport coefficients at μB=0 to the predictions from the lattice QCD and estimates from a Bayesian analysis by the JETSCAPE Collaboration.\ nFurthermore\, out-of-equilibrium properties of the QGP medium and in part icular\, the effect of a μB- dependence of thermodynamic and transport pr operties of the QGP are studied within the Parton-Hadron-String-Dynamics ( PHSD) transport approach\, which covers the full evolution of the system d uring HICs. We compare our results with the hybrid approaches taking into account the values of transport coefficients. We find that bulk observable s and flow coefficients for strange hadrons as well as for antiprotons are more sensitive to the properties of the QGP\, in particular to the μB - dependence of the QGP interactions.\n\nhttps://events.saifa.rs/event/554/c ontributions/383/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/383/ END:VEVENT BEGIN:VEVENT SUMMARY:Fluctuations near the liquid-gas and chiral phase transitions in h adronic matter DTSTART;VALUE=DATE-TIME:20230530T124500Z DTEND;VALUE=DATE-TIME:20230530T130500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-382@indico.ipb.ac.rs DESCRIPTION:Speakers: Michał Marczenko (University of Wrocław\, Poland) \nWe investigate the fluctuations of the net-baryon number density in dens e hadronic matter. Chiral dynamics is modeled via the parity doublet Lagra ngian\, and the mean-field approximation is employed to account for chiral criticality. We focus on the qualitative properties and systematics of th e second-order susceptibility of the net-baryon number density for individ ual positive- and negative-parity nucleons whose masses become degenerate at the chiral restoration. It is shown that the second-order susceptibilit y of the positive-parity state can become negative when the chiral symmetr y is restored\, as a natural consequence of the unique relationship of the mass to the order parameter. Moreover\, we find that such negative fluctu ations are indicative of approaching the critical point on the chiral phas e boundary. Our results may have consequences for the interpretation of th e experimental data on net-proton fluctuations in heavy-ion collisions.\n\ nhttps://events.saifa.rs/event/554/contributions/382/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/382/ END:VEVENT BEGIN:VEVENT SUMMARY:Dileptons at low energies: prospects and challenges DTSTART;VALUE=DATE-TIME:20230530T121500Z DTEND;VALUE=DATE-TIME:20230530T124500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-381@indico.ipb.ac.rs DESCRIPTION:Speakers: Itzhak Tserruya (Weizmann Institute of Science\, Is rael)\nResults obtained from dilepton measurements over the past 25 years at energies from SPS energies up to RHIC and LHC energies will be reviewed . The motivation for extending these measurements to lower energies will b e discussed with emphasis on the onset of the deconfinement phase transiti on\, the onset of chiral symmetry restoration and the search for a first o rder phase transition. The current status of the NICA facility and the pos sibility to perform these measurements with the MPD detector will be prese nted.\n\nhttps://events.saifa.rs/event/554/contributions/381/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/381/ END:VEVENT BEGIN:VEVENT SUMMARY:Hadronization in Vacuum and in Medium DTSTART;VALUE=DATE-TIME:20230530T100500Z DTEND;VALUE=DATE-TIME:20230530T103000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-380@indico.ipb.ac.rs DESCRIPTION:Speakers: Rainer J Fries (Cyclotron Institute and Department of Physics and Astronomy\, Texas A&M University\, US)\nHybrid Hadronizatio n is based on the idea of describing hadronization at short and long dista nces by different hadronization models\, namely parton recombination\, and string fragmentation. The latter dominates in the vacuum at large energie s. The former becomes important at lower energies and in the presence of a bath of partons\, e.g. for jet showers or heavy quarks in quark gluon pla sma. Hybrid Hadronization allows for jet partons to form strings or hadron s that include partons from the thermal bath. In this talk we review some basic concepts of Hybrid Hadronization\, and discuss results for various s ystems from e+e- to AA collisions\n\nhttps://events.saifa.rs/event/554/con tributions/380/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/380/ END:VEVENT BEGIN:VEVENT SUMMARY:Advances in Jet thermalization using QCD kinetic theory DTSTART;VALUE=DATE-TIME:20230530T094500Z DTEND;VALUE=DATE-TIME:20230530T100500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-379@indico.ipb.ac.rs DESCRIPTION:Speakers: Oscar Garcia-Montero (Universität Bielefeld\, Germ any)\nIn this work we use linearized QCD kinetic to study how highly energ etic parton -proxy for a jet- interacts with the hot Quark-Gluon Plasma (Q GP)\, We find that the parton loses energy to the medium mainly through a radiative turbulent gluon cascade\, down to the temperature\, at which dis sipation starts taking place. The distribution of energy takes place in tw o stages\, first\, a highly collimated collinear energy cascade\, which as the redistributed energy arrives to the plasma temperature\, triggers an angular cascade. This transports the energy to large angles with respect t o the jet axis. Furthermore\, we will show the importance of the jet cone size in reducing/enhancing the details of dissipation in jet observables.\ n\nhttps://events.saifa.rs/event/554/contributions/379/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/379/ END:VEVENT BEGIN:VEVENT SUMMARY:ebeDREENA framework as a QGP tomography tool DTSTART;VALUE=DATE-TIME:20230530T092500Z DTEND;VALUE=DATE-TIME:20230530T094500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-378@indico.ipb.ac.rs DESCRIPTION:Speakers: Dusan Zigic ()\nWe present a novel framework ebe-DRE ENA\, based on a state-of-the-art dynamical energy loss model\, which can include any temperature profile from bulk medium simulations. The framewor k is fully optimized to exploit different state-of-the-art medium evolutio ns - both event-by-event hydrodynamics and kinetic transport theory. It do es not use fitting parameters within the energy loss model\, allowing it t o fully exploit differences in temperature profiles\, as the only input in the framework. The framework applies to both light and heavy flavor obser vables\, and both large (A+A) and small (e.g. p+A) systems. We calculate h igh-pt harmonics up to 6th order and exploit how the differences in the te mperature profiles affect them\, which will be especially useful with the upcoming high-luminosity measurements at RHIC and LHC. These comparisons o f predictions and data are done within the same formalism and parameter se t. We\, therefore\, propose ebe-DREENA as a unique tomography tool\, which allows systematic and comprehensive mapping of QGP properties.\n\nhttps:/ /events.saifa.rs/event/554/contributions/378/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/378/ END:VEVENT BEGIN:VEVENT SUMMARY:Fully Coherent Energy Loss in pA and AA collisions DTSTART;VALUE=DATE-TIME:20230530T090000Z DTEND;VALUE=DATE-TIME:20230530T092500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-377@indico.ipb.ac.rs DESCRIPTION:Speakers: Stéphane Peigné (CNRS\, Subatech\, Nantes)\nIn hig h-energy proton-nucleus (pA) collisions\, an incoming energetic parton cro sses the target nucleus and suffers medium-induced\, fully coherent gluon radiation. I will review the theoretical status of this effect\, and prese nt the phenomenological consequences of the corresponding fully coherent e nergy loss (FCEL) on light hadron\, heavy meson and quarkonium production in pA collisions. I will briefly recall that the extrapolation of FCEL to AA collisions shows that this « cold nuclear matter effect » should not be neglected compared to the hot\, QGP effects.\n\nhttps://events.saifa.rs /event/554/contributions/377/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/377/ END:VEVENT BEGIN:VEVENT SUMMARY:Constraining η/s through high-pt tomography DTSTART;VALUE=DATE-TIME:20230530T074500Z DTEND;VALUE=DATE-TIME:20230530T080500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-375@indico.ipb.ac.rs DESCRIPTION:Speakers: Bithika Karmakar (Institute of Physics Belgrade)\nTy pically\, the bulk properties of Quark Gluon Plasma (QGP) are studied usin g the low-pt data. However\, the high-pt probes can also serve as powerful tomography tools\, since they are sensitive to global QGP features\, such as different temperature profiles or initial conditions. In this study\, we try to determine if it is possible to constrain the η/s of the medium formed in the heavy-ion collisions using the high-pt data/theory. We assum e three different parametrizations of (η/s)(T) and compute the high-pt RA A and flow coefficients v2\, v3\, and v4. Our results demonstrate that the high-pt data can not distinguish between different (η/s)(T) assumptions when the evolution is constrained to reproduce the low-pt data. As a secon d approach\, we utilize our dynamical energy loss model to compute the que nching strength (q̂/T^3) and then transform it into the (η/s)(T) of the evolving medium. The temperature dependence of (η/s) computed in this app roach agrees surprisingly well with the (η/s)(T) inferred through state-o f-the-art Bayesian analysis of the low-pt data.\n\nhttps://events.saifa.rs /event/554/contributions/375/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/375/ END:VEVENT BEGIN:VEVENT SUMMARY:Transport coefficients in the pre-equilibrium stage DTSTART;VALUE=DATE-TIME:20230530T070000Z DTEND;VALUE=DATE-TIME:20230530T072500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-373@indico.ipb.ac.rs DESCRIPTION:Speakers: Tuomas Lappi (University of Jyväskylä)\nThe initia l pre-equilibrium stage of a heavy ion collision can have a significant im pact on hard probes of the quark gluon plasma such as jets and heavy quark s. In weak coupling QCD the properties of this pre-equilibrium phase can b e understood by effective kinetic theory\, which can follow the developmen t of the system from the glasma to hydrodynamics. We compute the jet quen ching parameter q̂ and the heavy quark momentum diffusion coefficient usi ng the effective kinetic theory this bottom-up isotropization phase. To a first approximation these coefficients are similar to a thermal system wit h the same energy density. However\, unlike the thermal case these coeffic ients are also anisotropic. They are also enhanced in the earliest overocc upied phase and suppressed in the later\, underoccupied\, stage of thermal ization.\n\n[1] Heavy quark diffusion coefficient in heavy-ion collisions via kinetic theory\, K. Boguslavski\, A. Kurkela\, T. Lappi\, F. Lindenbau er\, J. Peuron\, arXiv:2303.12520 [hep-ph]\n[2] Jet momentum broadening du ring initial stages in heavy-ion collisions\, K. Boguslavski\, A. Kurkela\ , T. Lappi\, F. Lindenbauer\, J. Peuron\, arXiv:2303.12595 [hep-ph]\n\nhtt ps://events.saifa.rs/event/554/contributions/373/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/373/ END:VEVENT BEGIN:VEVENT SUMMARY:Fluctuations and correlations of the anisotropic flow DTSTART;VALUE=DATE-TIME:20230529T150000Z DTEND;VALUE=DATE-TIME:20230529T152500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-370@indico.ipb.ac.rs DESCRIPTION:Speakers: Boris Tomášik (Czech Technical University\, Czech Republic)\nThe azimuthal anisotropy of the observed distribution of hadron s results from the anisotropy of the initial conditions. A more detailed p icture is in principle provided by correlations of the flow coefficients i n various kinematic regions. This includes the decorrelation of flow aniso tropy in rapidity\, the correlation of the anisotropy with mean pt\, or th e decorrelation of the anisotropy in different pt bins. We present the res ults of a hybrid model that employs vHLLE for the deconfined phase and uRQ MD or SMASH for the hadronic phase.\n\nhttps://events.saifa.rs/event/554/c ontributions/370/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/370/ END:VEVENT BEGIN:VEVENT SUMMARY:Transverse momentum fluctuations in ultracentral Pb+Pb collisions at the LHC DTSTART;VALUE=DATE-TIME:20230529T141500Z DTEND;VALUE=DATE-TIME:20230529T144000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-369@indico.ipb.ac.rs DESCRIPTION:Speakers: Jean-Yves Ollitrault (IPhT Saclay)\nThe ATLAS collab oration has analyzed event-to-event fluctuations of the transverse momentu m per particle as a function of the particle multiplicity. In the most cen tral collisions\, the variance of fluctuations decreases steeply. I show t hat this can be explained simply\, provided that one takes into account tw o combined effects: First\, for a fixed collision multiplicity\, the impac t parameter spans a range of values. Second\, still for fixed multiplicity \, the momentum per particle increases as a function of impact parameter. Based on this analysis\, I derive accurate predictions for the increase of the mean transverse momentum in ultracentral collisions\, which is yet un observed.\n\nhttps://events.saifa.rs/event/554/contributions/369/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/369/ END:VEVENT BEGIN:VEVENT SUMMARY:Interplay between core and corona from small to large colliding sy stems DTSTART;VALUE=DATE-TIME:20230529T132000Z DTEND;VALUE=DATE-TIME:20230529T134500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-368@indico.ipb.ac.rs DESCRIPTION:Speakers: Yuuka Kanakubo (University of Jyväskylä)\nProperti es of quark gluon plasma (QGP) have been studied in high-energy nuclear co llisions. Since it is difficult to describe the dynamical phenomena by fir st-principle calculations\, an approach via phenomenological models is ind ispensable to scrutinize the QGP properties through experimental data. We have developed a Monte Carlo event generator based on the hydrodynamic pic ture of the QGP\, Dynamical Core-Corona Initialization framework (DCCI2). In this talk\, I emphasize the importance of a phenomenological model that includes both equilibrium (core) and non-equilibrium (corona) components for more precise studies of QGP properties. In particular\, I show that th e corona component\, which has not been considered in heavy-ion collision reactions\, plays an important role in the interpretation of experimental data.\n\nhttps://events.saifa.rs/event/554/contributions/368/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/368/ END:VEVENT BEGIN:VEVENT SUMMARY:System size dependence of pre-equilibrium and applicability of hyd rodynamics in HIC DTSTART;VALUE=DATE-TIME:20230529T130000Z DTEND;VALUE=DATE-TIME:20230529T132000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-367@indico.ipb.ac.rs DESCRIPTION:Speakers: Clemens Werthmann (University of Wroclaw)\nWe simula te the space-time dynamics of high-energy collisions based on a microscopi c kinetic description in the conformal relaxation time approximation\, in order to determine the range of applicability of an effective description in relativistic viscous hydrodynamics [1\,2]. We find that hydrodynamics p rovides a quantitatively accurate description of collective flow when the average inverse Reynolds number Re−1 is sufficiently small and the early pre-equilibrium stage is properly accounted for. We further discuss the i mplications of our findings for the (in)applicability of hydrodynamics in proton-proton\, proton-nucleus and light nucleus collisions.\n[1] arXiv: 2 211.14379 [hep-ph]\n[2] arXiv: 2211.14356 [hep-ph]\n\nhttps://events.saifa .rs/event/554/contributions/367/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/367/ END:VEVENT BEGIN:VEVENT SUMMARY:How to explore initial stages and QGP anisotropy by using high-pt data? DTSTART;VALUE=DATE-TIME:20230529T124000Z DTEND;VALUE=DATE-TIME:20230529T130000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-366@indico.ipb.ac.rs DESCRIPTION:Speakers: Stefan Stojku ()\nIn this talk\, we will discuss how high-pt data can be used to constrain tau0\, the onset time of energy los s and fluid-dynamical evolution\, an important parameter of our descriptio n the evolution of QGP created in relativistic heavy-ion collisions. We fi rst consider a scenario without pre-equilibrium evolution\, and demonstrat e that high-pt data clearly prefers later tau0. Then\, we consider several more sophisticated scenarios with pre-equilibrium evolution and show that high-pt RAA and v2 are sensitive to different initializations and early e xpansion dynamics and that they prefer later onset of energy loss and tran sverse expansion.\nMoreover\, we consider the spatial anisotropy of the QG P\, as it is one of the main properties of this system. We propose a novel method to extract the spatial anisotropy from high pt data. Based on nume rical calculations and comparisons with experimental data\, we show that a modified ratio of v2 and RAA reaches a well-defined saturation value\, wh ich is directly proportional to the time-averaged anisotropy of the evolvi ng QGP. We relate this ratio to a new observable\, which we call jet-perce ived anisotropy\, and we argue that it can provide constraints on bulk-med ium simulations.\n\nhttps://events.saifa.rs/event/554/contributions/366/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/366/ END:VEVENT BEGIN:VEVENT SUMMARY:Initialization and fluctuations of QGP fluids in Bjorken expansion DTSTART;VALUE=DATE-TIME:20230529T121500Z DTEND;VALUE=DATE-TIME:20230529T124000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-365@indico.ipb.ac.rs DESCRIPTION:Speakers: Tetsufumi Hirano (Sophia University\, Japan)\nWe dis cuss two topics in hydrodynamic description of QGP fluids in high-energy n uclear collisions. We first constrain the initial conditions in the Bjorke n expansion model by considering causality. When the system is far away fr om local equilibrium\, the relativistic hydrodynamic equations tend to vio late the causality. Within the conformal fluids in one-dimensionally expan ding system\, we find initial conditions are largely constrained due to ca usality conditions. This sheds a light on importance of core-corona initia lization in high-energy nuclear collisions. We next discuss thermal fluctu ations during hydrodynamic evolution (a.k.a. hydrodynamic fluctuations) in the Bjorken expansion model. We take account of the second order terms\, which are required from causality\, in linear perturbation of Bjorken's eq uations and analyze correlation functions of energy density in the longitu dinal direction. We find a typical behavior of correlation functions which reflect transport properties of the QGP. We also argue generalized consti tutive equations from a viewpoint of hydrodynamic fluctuations.\n\nhttps:/ /events.saifa.rs/event/554/contributions/365/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/365/ END:VEVENT BEGIN:VEVENT SUMMARY:Effect of higher orders in opacity on high-pT observables DTSTART;VALUE=DATE-TIME:20230529T095000Z DTEND;VALUE=DATE-TIME:20230529T101000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-364@indico.ipb.ac.rs DESCRIPTION:Speakers: Bojana Ilic (Institute of Physics Belgrade\, Serbia) \nHistorically\, high-pT radiative energy loss is calculated under the ass umptions of the optically thin or optically thick medium within pQCD. Thes e are two limiting (and opposite) approximations\, corresponding to a jet experiencing only one or an infinite number of scatterings with medium con stituents\, respectively. However\, in general\, QGP created at the RHIC a nd the LHC is estimated to have 4-5 scattering centers\, indicating the in adequacy of such approximations. Theoretical efforts to relax these approx imations are still inconclusive\, and lack verification against experiment al data.\nTo address these issues\, we generalize our dynamical energy los s and DGLV formalisms toward finite orders in opacity\, providing explicit analytical expressions up to the 4th order. These complex expressions\, w hich are highly oscillatory\, are obtained for the first time to our knowl edge. Further\, we implement them into an adequately generalized DREENA fr amework to assess the effects of higher orders in opacity on a comprehensi ve set of high-pT observables. Analytical and numerical results\, as well as the interpretation of nonintuitive observations\, are provided.\n\nhttp s://events.saifa.rs/event/554/contributions/364/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/364/ END:VEVENT BEGIN:VEVENT SUMMARY:Jet quenching in evolving anisotropic matter DTSTART;VALUE=DATE-TIME:20230529T093000Z DTEND;VALUE=DATE-TIME:20230529T095000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-363@indico.ipb.ac.rs DESCRIPTION:Speakers: Andrey Sadofyev (IGFAE)\nOver the last decades\, the theoretical picture of how hadronic jets interact with nuclear matter has been extended to account for the medium’s finite longitudinal length an d expansion. However\, only recently a first-principle approach has been d eveloped that allows to couple the jet evolution to the medium flow and an isotropic structure in the dilute limit. In this talk\, I will show how to extend this approach to the dense regime\, where the resummation of multi ple in-medium scatterings is necessary. Particularly\, I will consider the modifications of the single particle momentum broadening distribution and single gluon production rate in evolving matter. The resummation is perfo rmed by either computing the opacity series or starting from the all order BDMPS-Z formalism. I will also discuss the (novel) resulting modification s to jets' substructure and the effects of mass in the case of heavy-flavo r quarks.\n\nhttps://events.saifa.rs/event/554/contributions/363/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/363/ END:VEVENT BEGIN:VEVENT SUMMARY:Hard probes from the view point of open quantum systems DTSTART;VALUE=DATE-TIME:20230529T090000Z DTEND;VALUE=DATE-TIME:20230529T093000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-362@indico.ipb.ac.rs DESCRIPTION:Speakers: Jean-Paul Blaizot (Institut de Physique Théorique )\nHard probes are produced at early stages of heavy ion collisions and ca rry with them information about the medium they traverse before being dete cted. Some of them are elementary\, but some\, like quarkonia are complex. In this talk I shall argue that it is interesting to consider such comple x hard probes from the point of view of open quantum systems. I shall in p articular establish interesting connection between the propagation of heav y quarkonia in a quark-gluon plasma and some aspects of jet physics.\n\nht tps://events.saifa.rs/event/554/contributions/362/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/362/ END:VEVENT BEGIN:VEVENT SUMMARY:Determining the onset of color coherence with energy correlators DTSTART;VALUE=DATE-TIME:20230529T080500Z DTEND;VALUE=DATE-TIME:20230529T083000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-360@indico.ipb.ac.rs DESCRIPTION:Speakers: Carlota Andres (CPHT\, École polytechnique)\nWe pre sent a new approach to jet substructure in heavy-ion collisions based on t he study of correlation functions of energy flow operators (energy correla tors). This approach is based on the insight that the dynamics of the QGP is imprinted at specific time scales in the jet\, which will be reflected as changes in the shape of the correlator. We analyze the two-point correl ator of an in-medium massless quark jet within three jet quenching formali sms: BDMPS-Z with the harmonic oscillator approximation\, BDMPS-Z with a Y ukawa (Gyulassy-Wang) parton-interaction model\, and the first opacity DGL V framework. We show that the spectra of correlation functions is sensitiv e to color coherence\, which allows us to robustly identify the resolution scale of the QGP: the energy scale at which in-medium emissions start to be resolved by the QGP.\n\nhttps://events.saifa.rs/event/554/contributions /360/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/360/ END:VEVENT BEGIN:VEVENT SUMMARY:What we can learn about the QGP dynamics from jets DTSTART;VALUE=DATE-TIME:20230529T074000Z DTEND;VALUE=DATE-TIME:20230529T080500Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-359@indico.ipb.ac.rs DESCRIPTION:Speakers: Yacine Mehtar-Tani (Brookhaven National Laboratory\, US)\nQCD jets play a central role in probing QCD at high precision and in new physics searches at colliders. They are also extensively studied in u ltra relativistic heavy ion collisions as multi-dimensional probes of the quark gluon plasma (QGP) that is created in the aftermath of the collision s. While the theory for jet evolution in vacuum is well established\, in t he presence of a hot and dense QCD medium new emergent phenomena take plac e as a result of jet-medium interactions that have been recently uncovered and are currently being studied. In this talk\, I will focus on the emble matic observable of jet quenching that is the nuclear modification factor and show that by exploring its dependence on jet pT\, collision centrality and jet cone size we can extract valuable information about the dynamics and mechanisms of jet energy loss. I will in particular present a recent t heoretical calculation that accounts for quantum interferences effects on energy loss that parton shower undergo in the QGP. I will also show predic tions that were recently compared to ATLAS and ALICE data.\n\nhttps://even ts.saifa.rs/event/554/contributions/359/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/359/ END:VEVENT BEGIN:VEVENT SUMMARY:Everything You Always Wanted to Know About Jets*... and More DTSTART;VALUE=DATE-TIME:20230529T071000Z DTEND;VALUE=DATE-TIME:20230529T074000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-358@indico.ipb.ac.rs DESCRIPTION:Speakers: John Harris (Yale University\, US)\nThe energy loss of fast partons (quarks or gluons) in relativistic heavy-ion collisions ca n provide information on parton energy-loss mechanisms in a quark-gluon pl asma (QGP) and serve to probe its microscopic structure. Understanding the parton energy-loss processes as partons propagate through a QGP requires measurement of large transverse momentum (high-pT) hadrons and jets. Suppr ession of the yield of high-pT hadrons at RHIC was the first indication of parton energy loss. More recently with the advent of higher collision ene rgies at the LHC\, the quenching of jets has been studied extensively in h eavy-ion collisions. In this presentation I will provide an overview of hi gh-pT hadron suppression\, jet quenching and jet substructure measurements in heavy-ion collisions at RHIC and LHC.\n* but were afraid to ask!\n\nht tps://events.saifa.rs/event/554/contributions/358/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/358/ END:VEVENT BEGIN:VEVENT SUMMARY:Welcome DTSTART;VALUE=DATE-TIME:20230529T070000Z DTEND;VALUE=DATE-TIME:20230529T071000Z DTSTAMP;VALUE=DATE-TIME:20261009T175554Z UID:indico-contribution-554-361@indico.ipb.ac.rs DESCRIPTION:https://events.saifa.rs/event/554/contributions/361/ LOCATION:SANU (Serbian Academy of Science and Arts) - Belgrade\, Serbia URL:https://events.saifa.rs/event/554/contributions/361/ END:VEVENT END:VCALENDAR