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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:20261010T002454Z
UID:indico-contribution-170-399@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: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:20261010T002454Z
UID:indico-contribution-170-398@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:20261010T002454Z
UID:indico-contribution-170-397@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:20261010T002454Z
UID:indico-contribution-170-396@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: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:20261010T002454Z
UID:indico-contribution-170-384@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:20261010T002454Z
UID:indico-contribution-170-383@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:20261010T002454Z
UID:indico-contribution-170-382@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:20261010T002454Z
UID:indico-contribution-170-381@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: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:20261010T002454Z
UID:indico-contribution-170-368@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:20261010T002454Z
UID:indico-contribution-170-367@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:20261010T002454Z
UID:indico-contribution-170-366@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:20261010T002454Z
UID:indico-contribution-170-365@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
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