BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN 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:20261009T221228Z UID:indico-contribution-168-404@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:Heavy flavor measurements in STAR experiment DTSTART;VALUE=DATE-TIME:20230531T093500Z DTEND;VALUE=DATE-TIME:20230531T100000Z DTSTAMP;VALUE=DATE-TIME:20261009T221228Z UID:indico-contribution-168-394@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:Missing beauty of proton-proton interactions DTSTART;VALUE=DATE-TIME:20230531T100000Z DTEND;VALUE=DATE-TIME:20230531T102500Z DTSTAMP;VALUE=DATE-TIME:20261009T221228Z UID:indico-contribution-168-395@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:20261009T221228Z UID:indico-contribution-168-393@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:Hadronization in Vacuum and in Medium DTSTART;VALUE=DATE-TIME:20230530T100500Z DTEND;VALUE=DATE-TIME:20230530T103000Z DTSTAMP;VALUE=DATE-TIME:20261009T221228Z UID:indico-contribution-168-380@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:20261009T221228Z UID:indico-contribution-168-379@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:20261009T221228Z UID:indico-contribution-168-378@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:20261009T221228Z UID:indico-contribution-168-377@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:Effect of higher orders in opacity on high-pT observables DTSTART;VALUE=DATE-TIME:20230529T095000Z DTEND;VALUE=DATE-TIME:20230529T101000Z DTSTAMP;VALUE=DATE-TIME:20261009T221228Z UID:indico-contribution-168-364@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:20261009T221228Z UID:indico-contribution-168-363@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:20261009T221228Z UID:indico-contribution-168-362@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 END:VCALENDAR