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We perform viscous hydrodynamic calculations in 2+1 dimensions to investigate the influence of bulk viscosity on the viscous suppression of elliptic flow in non-central heavy-ion collisions at RHIC energies. Bulk and shear viscous effects…

核理论 · 物理学 2010-04-06 Huichao Song , Ulrich W Heinz

Heavy quarks are a unique probe to study the medium produced in ultra-relativistic heavy ion collisions. Within the partonic transport model Boltzmann approach to multi-parton scatterings (BAMPS) the production, energy loss and elliptic…

高能物理 - 唯象学 · 物理学 2012-04-20 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

Collisional energy loss of heavy partons (charm and bottom quarks) has been determined within the framework of semi-classical transport theory implying Bhatnagar-Gross-Krook (BGK) collisional kernel. Hot QCD medium effects have been…

核理论 · 物理学 2019-07-30 Mohammad Yousuf Jamal , Vinod Chandra

Heavy quark production provides a unique probe of the quark-gluon plasma transport properties in heavy ion collisions. Experimental observables like the nuclear modification factor $R_{\rm AA}$ and elliptic anisotropy $v_{2}$ of heavy…

高能物理 - 唯象学 · 物理学 2020-07-28 Shuang Li , Jinfeng Liao

With the QGP opacity computed perturbatively and with the global entropy constraints imposed by the observed $dN_{ch}/dy\approx1000$, radiative energy loss alone cannot account for the observed suppression of single non-photonic electrons.…

核理论 · 物理学 2008-11-26 Simon Wicks

The correlation between the harmonic flow and the transverse flow in relativistic heavy ion collisions is calculated in the hydrodynamic model. The partial correlation coefficient, corrected for fluctuations of multiplicity, is compared to…

核理论 · 物理学 2020-07-01 Piotr Bozek , Hadi Mehrabpour

Anisotropies of hadronic distribution in nuclear collisions are used for determination of properties of the nuclear matter. At the LHC it is important to account for the contribution to the flow due to momentum transferred from hard partons…

核理论 · 物理学 2014-11-03 Boris Tomasik , Martin Schulc

In this study we evaluate the dynamical collisional energy loss of heavy quarks, their interaction rate as well as the different transport coefficients (drag and diffusion coefficients, $\hat{q}$, etc). We calculate these different…

高能物理 - 唯象学 · 物理学 2014-12-15 Hamza Berrehrah , Pol-Bernard Gossiaux , Jörg Aichelin , Wolfgang Cassing , Elena Bratkovskaya

The thermal suppression of heavy quark bound states represents an ideal observable for determining if one has produced a quark-gluon plasma in ultrarelativistic heavy-ion collisions. In recent years, a paradigm shift has taken place in the…

核理论 · 物理学 2018-03-14 Brandon Krouppa , Radoslaw Ryblewski , Michael Strickland

Heavy quark observables are applied to probe the initial energy density distribution with violation of longitudinal boost invariance produced in relativistic heavy-ion collisions. Using an improved Langevin model coupled to a…

核理论 · 物理学 2023-01-25 Ze-Fang Jiang , Shanshan Cao , Wen-Jing Xing , Xiaowen Li , Ben-Wei Zhang

Motivated by the anisotropic momentum distribution of particles in heavy-ion collisions, we study the angular dependence of quark average momentum and quark distribution function in the Polyakov-Nambu--Jona-Lasinio (PNJL) quark model. We…

高能物理 - 唯象学 · 物理学 2023-12-27 Wei-bo He , Guo-yun Shao

The evolution of a relativistic heavy-ion collision is typically understood as a process that transmutes the initial geometry of the system into the final momentum distribution of observed hadrons, which can be described via a cumulant…

核理论 · 物理学 2024-05-24 Jefferson Sousa , Jorge Noronha , Matthew Luzum

Anisotropic flows ($v_1$, $v_2$ and $v_4$) of light nuclear clusters are studied by a nucleonic transport model in intermediate energy heavy ion collisions. The number-of-nucleon scalings of the directed flow ($v_1$) and elliptic flow…

Dissipative processes in relativistic fluids are known to be important in the analyses of the hot QCD matter created in high-energy heavy-ion collisions. In this work, I consider dissipative corrections to energy and conserved charge…

核理论 · 物理学 2018-10-08 Akihiko Monnai

The propagation of charm and bottom quarks through an ellipsoidal domain of quark gluon plasma has been studied within the ambit of non-equilibrium statistical mechanics. Energy dissipation of heavy quarks by both radiative and collisional…

核理论 · 物理学 2010-11-23 Santosh K Das , Jan-e Alam

We compute the collisional energy loss for a heavy quark above the critical temperature in Quantum ChromoDynamics (QCD). We work in the semi Quark-Gluon Plasma, which assumes that this region is dominated by the non-trivial holonomy of the…

高能物理 - 唯象学 · 物理学 2015-06-18 Shu Lin , Robert D. Pisarski , Vladimir V. Skokov

The strong interaction between heavy quarks and the quark gluon plasma makes the open and hidden charm hadrons be sensitive probes of the deconfinement phase transition in high energy nuclear collisions. Both the cold and hot nuclear matter…

高能物理 - 唯象学 · 物理学 2016-11-23 Kai Zhou , Wei Dai , Nu Xu , Pengfei Zhuang

How can we gain a detailed insight into the hydrodynamic response of the system created in heavy ion collisions to the fluctuating initial geometry and viscous effects? Do we create a strongly interacting medium in proton-nucleus and…

核实验 · 物理学 2021-05-18 Georgios Konstantinos Krintiras

Two AdS/CFT based energy loss models are used to compute the suppression and azimuthal correlations of heavy quarks in heavy ion collisions. The model with a velocity independent diffusion coefficient is in good agreement with B and D meson…

高能物理 - 唯象学 · 物理学 2018-02-08 Robert Hambrock , William Alexander Horowitz

Energy-loss studies of hard particle probes produced in heavy ion collisions have often been used to get information on the interactions within the medium of a quark-gluon plasma (QGP). However, with the study of in-medium energy-loss of…

高能物理 - 唯象学 · 物理学 2018-08-01 Martin Rohrmoser , Pol-Bernard Gossiaux , Thierry Gousset , Jörg Aichelin