-
Giuliano Giacalone (Universität Heidelberg), Jiangyong Jia (Stony Brook University (US))06/04/2022, 17:30Initial state physics and approach to thermal equilibriumPoster
The hydrodynamic modeling of the quark-gluon plasma (QGP) permits us today not only to perform quantitative extractions of the transport properties of the QGP, but also to strongly constrain its initial condition. A growing body of experimental evidence shows that the QGP initial condition is strongly impacted by the shape and radial structure of the colliding nuclei. We discuss the exciting...
Go to contribution page -
Jakub Jankowski (University of Wroclaw)06/04/2022, 17:34Initial state physics and approach to thermal equilibriumPoster
It is frequently supposed that quark-gluon plasma created in heavy-ion collisions undergoes free streaming at early times. We examine this issue based on the assumption that a universal attractor dominates the dynamics already at the earliest stages, which offers a way to connect the initial state with the start of the hydrodynamic expansion in an approximate but conceptually transparent...
Go to contribution page -
Jani Penttala (University of Jyväskylä (FI))06/04/2022, 17:38Initial state physics and approach to thermal equilibriumPoster
Exclusive vector meson production is a powerful process to probe the small Bjorken-$x$ structure of protons and nuclei, as such processes are especially sensitive to gluonic structure and also provide access to the spatial distribution of small-$x$ gluons in nuclei. A powerful theoretical framework to study vector meson production at high energy, and to describe the initial condition of...
Go to contribution page -
Ashutosh Dash (Frankfurt University)06/04/2022, 17:42Initial state physics and approach to thermal equilibriumPoster
Hydrodynamics is an effective theory for the description of long-wavelength phenomena of fluids, that can be expressed as a small gradient expansion of fluid velocities relative to a thermal background. Thus, hydrodynamics is expected to fail for systems which are far-from-equilibrium. The medium produced in pp collisions at LHC and RHIC energies is an example of such a system. However, recent...
Go to contribution page -
Raquel Quishpe (University of Houston (US))06/04/2022, 17:46Initial state physics and approach to thermal equilibriumPoster
Event-by-event pseudorapidity distributions in heavy-ion collisions are sensitive to longitudinal fluctuations. Their shapes can be decomposed using Legendre polynomials, analogous to the Fourier decomposition for anisotropic flow. A longitudinal decomposition for Xe—Xe collisions at $\sqrt{s_{\mathrm{NN}}}=5.44$ TeV and Pb—Pb collisions $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV measured with the...
Go to contribution page -
Gabriel Denicol (Universidade Federal Fluminense)06/04/2022, 17:50Initial state physics and approach to thermal equilibriumPoster
Fluid-dynamical theories are always constructed in terms of an expansion around a given, yet arbitrary, local equilibrium state. This is implemented by the choice of the so-called matching conditions which define the temperature, chemical potential, and velocity of a viscous fluid. Matching conditions are an essential feature of nonequilibrium systems and their consequences to the emergence of...
Go to contribution page -
HuanZhong Huang (UCLA)06/04/2022, 17:54Initial state physics and approach to thermal equilibriumPoster
Transverse-momentum ($p_T$) dependence of elliptic flow ($v_2$) for identified particles at the top RHIC energy has well established a number-of-constituent-quark (NCQ) scaling [1], supportive of the coalescence sum rule that determines $v_2$ of mesons and baryons as the sum of contributions from their constituent quarks. The NCQ scaling implicitly assumes that the produced drops of partonic...
Go to contribution page -
Anton Alkin (CERN)06/04/2022, 17:58Initial state physics and approach to thermal equilibriumPoster
The rapidity dependence of particle production contains information on the partonic structure of the projectile and target and is, in particular at LHC energies, sensitive to non-linear QCD evolution in the initial state. At LHC, collision final states have been mainly studied in the central kinematic region, however, there is a rich opportunity for measurements in the forward direction, which...
Go to contribution page -
Sylwia Bazak (Jan Kochanowski University)06/04/2022, 18:02Initial state physics and approach to thermal equilibriumPoster
A system of gluon fields generated at the earliest phase of relativistic heavy-ion
Go to contribution page
collisions can be described in terms of classical fields. Numerical simulations show that the system is unstable but a character of the instability is not well understood. With the intention to systematically study the problem, we analyze a stability of classical chromomagnetic and chromoelectric fields which... -
Xiaojian Du (Bielefeld University)06/04/2022, 18:06Initial state physics and approach to thermal equilibriumPoster
We employ an effective kinetic theory of Quantum Chromo Dynamics (QCD) to study the pre-equilibrium dynamics of the Quark-Gluon Plasma (QGP) at zero and finite net-baryon density. By investigating the dynamics of the energy-momentum tensor and the conserved charges, we determine the relevant time and temperature scales for the onset of viscous hydrodynamics, and quantify the evolution of the...
Go to contribution page -
Andreas van Hameren06/04/2022, 18:10Initial state physics and approach to thermal equilibriumPoster
We propose a novel way to study the Weizsäcker-Williams gluon distribution
Go to contribution page
using the Electron Ion Collider. We examine the interplay between the effect
of the soft gluon emissions, or Sudakov effects, and gluon saturation effects
with the help of the azimuthal correlations between the total transverse
momentum of the dijet system and the scattered electron. Kinematic cuts are
imposed... -
David Mueller (TU Wien)06/04/2022, 18:14Initial state physics and approach to thermal equilibriumPoster
We perform an analytic calculation of the 3+1D structure of the initial state in heavy-ion collisions by considering the collision of longitudinally extended nuclei in the dilute limit of the Color Glass Condensate effective field theory of high-energy QCD. Based on general analytic expressions for the color fields in the future light cone, we compute the non-trivial rapidity profiles of the...
Go to contribution page -
Dr Yu Shi (Shandong University)06/04/2022, 18:18Initial state physics and approach to thermal equilibriumPoster
With the tremendous accomplishments of RHIC and the LHC experiments and the advent of the future Electron-Ion Collider on the horizon, the quest for compelling evidence of the color glass condensate (CGC) has become one of the most aspiring goals in the high energy quantum chromodynamics research. Pursuing this question requires developing the precision test of the CGC formalism. By...
Go to contribution page -
Diyu Shen06/04/2022, 18:22Initial state physics and approach to thermal equilibriumPoster
Heavy-ion collisions can produce an ultra-strong magnetic field, the evolution of which was predicted to decrease (increase) the directed flow slope, $dv_1/dy$, for positively (negatively) charged particles [1, 2]. In this work, we study this effect with large statistics datasets accumulated for Au+Au, $^{96}_{44}$Ru+$^{96}_{44}$Ru, and $^{96}_{40}$Zr+$^{96}_{40}$Zr isobar collisions at...
Go to contribution page -
Antonio Mauricio Soares Narciso Ferreira (University of Campinas)06/04/2022, 18:26Initial state physics and approach to thermal equilibriumPoster
The pre-hydrodynamic evolution of a heavy-ion collision can have a considerable effect on final state observables, notably those related to the transverse momentum spectra of final particles [1]. In this work, we study two different collision systems, namely Pb-Pb and p-Pb, utilising a state-of-the-art hybrid model. We extend our previous results [1] on the effects of pre-hydrodynamical models...
Go to contribution page
Choose timezone
Your profile timezone: