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We discuss heavy quark diffusion and radiation in an intermediate-momentum regime where finite mass effects can be significant. Diffusion processes are described in the Fokker-Planck approximation for soft momentum transfer, while radiative…

高能物理 - 唯象学 · 物理学 2024-02-22 Juhee Hong

The impact of momentum anisotropy on the heavy quark transport coefficients due to collisional and radiative processes in the QCD medium has been studied within the ambit of kinetic theory. Anisotropic aspects (momentum) are incorporated…

高能物理 - 唯象学 · 物理学 2021-05-14 Jai Prakash , Manu Kurian , Santosh K. Das , Vinod Chandra

We develop a transport approach for heavy quarks in a quark-gluon plasma, which is based on improved binary collision rates taking into account quantum statistics, the running of the QCD coupling and an effective screening mass adjusted to…

高能物理 - 唯象学 · 物理学 2015-06-04 Alex Meistrenko , Andre Peshier , Jan Uphoff , Carsten Greiner

Heavy quark dynamics in an anisotropic QCD medium have been analyzed within the Fokker-Planck approach. Heavy quark drag force and momentum diffusion tensor have been decomposed by employing a general tensor basis for an anisotropic medium.…

高能物理 - 唯象学 · 物理学 2022-05-13 Avdhesh Kumar , Manu Kurian , Santosh K. Das , Vinod Chandra

We discuss the propagation of heavy quarks (charm and bottom) through the QGP by means of a relativistic Boltzmann transport approach including both collisional and radiative energy loss mechanisms. In particular we investigate the impact…

核理论 · 物理学 2017-05-24 G. Coci , F. Scardina , V. Greco

We compute the leading-order collisional energy loss of a heavy quark propagating through a quark-gluon plasma in which the quark and gluon distributions are anisotropic in momentum space. Following the calculation outlined for QED in an…

高能物理 - 唯象学 · 物理学 2009-11-10 Paul Romatschke , Michael Strickland

The heavy quark drag and momentum diffusion coefficients in the presence of both the collisional and radiative processes have been studied in a hot viscous QCD medium. The thermal medium effects are incorporated by employing the effective…

高能物理 - 唯象学 · 物理学 2021-08-18 Adiba Shaikh , Manu Kurian , Santosh K. Das , Vinod Chandra , Sadhana Dash , Basanta K. Nandi

We use (3+1)-dimensional hydrodynamics with exact longitudinal boost-invariance to study the influence of collision centrality and initial energy density on the transverse flow pattern and the angular distributions of particles emitted near…

高能物理 - 唯象学 · 物理学 2009-10-09 Peter F. Kolb , Josef Sollfrank , Ulrich Heinz

Simultaneous description of heavy quark nuclear suppression factor $R_{AA}$ and the elliptic flow $v_2$ is a top challenge for all the existing models. We highlight how the temperature dependence of the energy loss/transport coefficients is…

核理论 · 物理学 2017-03-08 Santosh K. Das , Francesco Scardina , Salvatore Plumari , Vincenzo Greco

We extend our recently advanced model on collisional energy loss of heavy quarks in a quark gluon plasma (QGP) by including radiative energy loss. We discuss the approach and present calculations for PbPb collisions at $\sqrt{s}=2.76 TeV$.…

核理论 · 物理学 2012-01-23 J. Aichelin , P. B. Gossiaux , T. Gousset

The space-time propagation of heavy quarks in ultra-relativistic heavy ion collisions is studied within the partonic transport model Boltzmann Approach of MultiParton Scatterings (BAMPS). In this model heavy quarks interact with the…

高能物理 - 唯象学 · 物理学 2011-08-25 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

The impact of momentum anisotropy on the heavy quarks (HQs) dynamics has been investigated in a hot QCD medium while considering both collisional and radiative processes within the ambit of the Fokker-Planck approach. The relative…

高能物理 - 唯象学 · 物理学 2023-11-21 Jai Prakash , Vinod Chandra , Santosh K. Das

We study the dynamics of energy loss and flow of heavy quarks produced in ultra-relativistic heavy-ion collisions within the framework of a Langevin equation coupled to a (2+1)-dimensional viscous hydrodynamic model that simulates the…

核理论 · 物理学 2013-10-17 Shanshan Cao , Guang-You Qin , Steffen A. Bass

We study the heavy quark evolution in a quark-gluon plasma medium within the framework of Langevin equation coupled to a (2+1)-dimensional viscous hydrodynamic model. We modify the current Langevin algorithm such that apart from…

核理论 · 物理学 2015-06-11 Shanshan Cao , Guang-You Qin , Steffen A. Bass , Berndt Müller

The drag and diffusion coefficients of charm and bottom quarks propagating through quark gluon plasma have been evaluated for conditions relevant to nuclear collisions at Large Hadron Collider and Relativistic Heavy Ion Collider. Both the…

核理论 · 物理学 2015-03-17 Santosh K Das , Jan-e Alam

Anisotropic flows ($v_2$ and $v_4$) of hadrons and light nuclear clusters are studied by a partonic transport model and nucleonic transport model, respectively, in ultra-relativistic and intermediate energy heavy ion collisions. Both…

核理论 · 物理学 2008-11-26 Y. G. Ma

We study the energy loss of a quark moving in a strongly coupled QGP under the influence of anisotropy. The heavy quark drag force, diffusion coefficient, and jet quenching parameter are calculated using the Einstein-Maxwell-dilaton model,…

高能物理 - 唯象学 · 物理学 2023-07-26 Qi Zhou , Ben-Wei Zhang

Based on the quark coalescence model, we derive relations among the momentum anisotropies of mesons and baryons in relativistic heavy ion collisions from a given, but arbitrary azimuthal distribution for the partons. Besides the familiar…

核理论 · 物理学 2009-11-10 Peter F. Kolb , Lie-Wen Chen , Vincenzo Greco , Che Ming Ko

We study the propagation of heavy quarks (HQs) in the quark-gluon plasma (QGP) by means of a relativistic Boltzmann transport (RBT) approach. The non-perturbative interaction between heavy quarks and light quarks is described by means of a…

高能物理 - 唯象学 · 物理学 2019-02-20 S. Plumari , G. Coci , S. K. Das , V. Minissale , V. Greco

We discuss heavy-quark dynamics in the quark-gluon plasma under a strong magnetic field induced by colliding nuclei. By the use of the diagrammatic resummation techniques for Hard Thermal Loop and the external magnetic field, we show…

高能物理 - 唯象学 · 物理学 2016-11-03 Koichi Hattori , Kenji Fukushima , Ho-Ung Yee , Yi Yin
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