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:20261010T101519Z UID:indico-contribution-171-402@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:Constraining the QGP properties using heavy quarks DTSTART;VALUE=DATE-TIME:20230531T141500Z DTEND;VALUE=DATE-TIME:20230531T144000Z DTSTAMP;VALUE=DATE-TIME:20261010T101519Z UID:indico-contribution-171-406@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:20261010T101519Z UID:indico-contribution-171-405@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: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:20261010T101519Z UID:indico-contribution-171-371@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:Light Nuclei production in Coalescence Model DTSTART;VALUE=DATE-TIME:20230531T150500Z DTEND;VALUE=DATE-TIME:20230531T152500Z DTSTAMP;VALUE=DATE-TIME:20261010T101519Z UID:indico-contribution-171-401@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:20261010T101519Z UID:indico-contribution-171-400@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:Relativistic magnetohydrodynamics for spin polarized media DTSTART;VALUE=DATE-TIME:20230530T150000Z DTEND;VALUE=DATE-TIME:20230530T152500Z DTSTAMP;VALUE=DATE-TIME:20261010T101519Z UID:indico-contribution-171-387@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:20261010T101519Z UID:indico-contribution-171-386@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:20261010T101519Z UID:indico-contribution-171-385@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:Fluctuations and correlations of the anisotropic flow DTSTART;VALUE=DATE-TIME:20230529T150000Z DTEND;VALUE=DATE-TIME:20230529T152500Z DTSTAMP;VALUE=DATE-TIME:20261010T101519Z UID:indico-contribution-171-370@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:20261010T101519Z UID:indico-contribution-171-369@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 END:VCALENDAR