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相关论文: Heavy quark diffusion in a Polyakov loop plasma

200 篇论文

We compute the heavy quark momentum diffusion coefficient using effective kinetic theory for a system going through bottom-up isotropization until approximate hydrodynamization. We find that when comparing the nonthermal diffusion…

高能物理 - 唯象学 · 物理学 2025-06-25 Kirill Boguslavski , Aleksi Kurkela , Tuomas Lappi , Florian Lindenbauer , Jarkko Peuron

We investigate the perturbative and non-perturbative aspects of heavy quark transport in a thermal QCD medium. Based on the Soft-Hard Factorized Model (SHFM), we extend the original perturbative framework to the near-critical temperature…

高能物理 - 唯象学 · 物理学 2025-10-14 Jiazhen Peng , Jiale Lou , Fei Sun , Kejun Wu , Wei Xie , Zuman Zhang , Shuang Li , Sa Wang

In this work, the perturbative and non-perturbative contributions to the heavy quark (HQ) momentum ($\kappa$) as well as spatial ($D_s$) diffusion coefficients are computed in a weak background magnetic field. The formalism adopted here…

高能物理 - 唯象学 · 物理学 2025-07-10 Debarshi Dey , Aritra Bandyopadhyay , Santosh K. Das , Sadhana Dash , Vinod Chandra , Basanta K. Nandi

The diffusion of heavy quarks through the quark-gluon plasma (QGP) as produced in high-energy heavy-ion collisions has long been recognized as an excellent probe of its transport properties. In addition, the experimentally observed…

高能物理 - 唯象学 · 物理学 2023-04-05 Min He , Hendrik van Hees , Ralf Rapp

We study the interpretation of Lattice data about the thermodynamics of the deconfinement phase of SU(3) Yang-Mills theory, in terms of gluon quasiparticles propagating in a background of a Polyakov loop. A potential for the Polyakov loop,…

高能物理 - 唯象学 · 物理学 2013-05-30 M. Ruggieri , P. Alba , P. Castorina , S. Plumari , C. Ratti , V. Greco

We study the diffusion properties of the strongly interacting quark-gluon plasma (sQGP) and evaluate the diffusion coefficient matrix for the baryon ($B$), strange ($S$) and electric ($Q$) charges - $\kappa_{qq'}$ ($q,q' = B, S, Q$) and…

高能物理 - 唯象学 · 物理学 2021-08-25 Jan A. Fotakis , Olga Soloveva , Carsten Greiner , Olaf Kaczmarek , Elena Bratkovskaya

This paper investigates the influence of heavy-quark momentum on their interaction rate and the resulting drag coefficient in a quark-gluon plasma. To go beyond simplified treatments, we introduce a phenomenological extension of the drag…

高能物理 - 唯象学 · 物理学 2026-04-30 Marjan Rahimi Nezhad , Fatemeh Taghavi-Shahri , Kurosh Javidan

Using a holographic QCD model augmented by Bayesian inference, we calculate key transport coefficients of the quark-gluon plasma (QGP)$\text{-}$including the drag force, jet quenching parameter, heavy quark diffusion coefficient, and shear…

高能物理 - 唯象学 · 物理学 2026-01-21 Bing Chen , Liqiang Zhu , Xun Chen , Defu Hou , Xurong Chen

The bottom quark transport coefficients, i.e., drag and diffusion coefficients, have been studied for the collisional and soft gluon radiative processes within the viscous QCD medium. The thermal medium effects are incorporated using the…

高能物理 - 唯象学 · 物理学 2023-02-07 Adiba Shaikh , Sadhana Dash , Basanta K. Nandi

We use the recently obtained two-loop hard thermal loop perturbation theory thermodynamics functions of a plasma of quarks and gluons to compute the diagonal second- and fourth-order quark number susceptibilities. The two-loop hard thermal…

高能物理 - 唯象学 · 物理学 2013-08-07 Najmul Haque , Munshi G. Mustafa , Michael Strickland

The in medium dynamics of heavy particles are governed by transport coefficients. The heavy quark momentum diffusion coefficient, $\kappa$, is an object of special interest in the literature, but one which has proven notoriously difficult…

高能物理 - 唯象学 · 物理学 2019-09-25 Nora Brambilla , Miguel A. Escobedo , Antonio Vairo , Peter Vander Griend

Based on the holographic model, which incorporates the equation of state (EoS) and baryon number susceptibility for different flavors, we calculate the drag force, jet quenching parameter, and diffusion coefficient of the heavy quark at…

高能物理 - 唯象学 · 物理学 2025-07-08 Bing Chen , Xun Chen , Xiaohua Li , Zhou-Run Zhu , Kai Zhou

We perform the first simultaneous Bayesian inference of the temperature-dependent heavy-quark spatial diffusion coefficient $2\pi T\mathcal{D}_s$ and the scaled jet transport coefficient $\hat{q}/T^3$ in the quark-gluon plasma, utilizing…

核理论 · 物理学 2026-04-17 Xu-Fei Xue , Zi-Xuan Xu , Wei Dai , Jiaxing Zhao , Ben-Wei Zhang

Numerical results for the transport coefficients of quark gluon plasma are obtained by lattice simulations on on $16^3 \times 8$ lattice with the quench approximation where we apply the gauge action proposed by Iwasaki. The bulk viscosity…

高能物理 - 格点 · 物理学 2009-10-31 Sunao Sakai , Atsushi Nakamura , Takuya Saito

In order to characterize nuclear matter under extreme conditions, we calculate all diffusion transport coefficients related to baryon, electric and strangeness charge for both a hadron resonance gas and a simplified kinetic model of the…

高能物理 - 唯象学 · 物理学 2018-06-15 Moritz Greif , Jan A. Fotakis , Gabriel S. Denicol , Carsten Greiner

The interactions of heavy quarks with the partonic environment at finite temperature $T$ and finite quark chemical potential $\mu_q$ are investigated in terms of transport coefficients within the Dynamical Quasi-Particle model (DQPM)…

高能物理 - 唯象学 · 物理学 2014-11-11 H. Berrehrah , P. B. Gossiaux , J. Aichelin , W. Cassing , J. M. Torres-Rincon , E. Bratkovskaya

We compute and study the drag force acting on a heavy quark propagating through the matter produced in the collision of two sheets of energy in a strongly coupled gauge theory that can be analyzed holographically. Although this matter is…

高能物理 - 唯象学 · 物理学 2015-06-16 Paul M. Chesler , Mindaugas Lekaveckas , Krishna Rajagopal

The Polyakov loop has been used repeatedly as an order parameter in the deconfinement phase transition in QCD. We argue that, in the confined phase, its expectation value can be represented in terms of hadronic states, similarly to the…

高能物理 - 唯象学 · 物理学 2012-10-11 E. Megias , E. Ruiz Arriola , L. L. Salcedo

In the early stages of relativistic heavy-ion collisions, the momentum distribution of the quark-gluon plasma is anisotropic, leading to instabilities in the system due to chromomagnetic plasma modes. In this work, we consider the…

高能物理 - 唯象学 · 物理学 2025-06-03 Sumit , Jai Parkash , Santosh K. Das , Najmul Haque

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