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相关论文: A data-driven analysis of the heavy quark transpor…

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Application of Fokker-Planck equation to heavy quark transport in the evolving medium created in heavy ion collision is critically scrutinised. We realise that the approach introduces a moderate uncertainty in drag and diffusion…

核理论 · 物理学 2015-01-29 Nirupam Dutta , Trambak Bhattacharyya

We report on recent research on the properties of elementary particle matter governed by the strong force at high temperatures, where QCD predicts hadrons to dissolve into the Quark-Gluon Plasma (QGP). After a short introduction to the…

高能物理 - 唯象学 · 物理学 2008-05-04 R. Rapp , H. van Hees

Energy dependence of specific heat extracted from temperature fluctuation of Au + Au collisions at $\sqrt{s_{NN}}$ = 7.7 GeV to 200 GeV was investigated by using a multiphase transport (AMPT) model. The results were compared with those from…

核理论 · 物理学 2022-08-17 Ru-Xin Cao , Song Zhang , Yu-Gang Ma

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

A thermal gradient and/or a chemical potential gradient in a conducting medium can lead to an electric field, an effect known as thermoelectric effect or Seebeck effect. In the context of heavy-ion collisions, we estimate the thermoelectric…

高能物理 - 唯象学 · 物理学 2020-07-30 Aman Abhishek , Arpan Das , Deepak Kumar , Hiranmaya Mishra

We study the influence of a background magnetic field on the $J/\psi$ vector meson in a DBI-extension of the soft wall model, building upon our earlier work Phys. Rev. D91, 086002 (2015). In this specific holographic QCD model, we discuss…

高能物理 - 理论 · 物理学 2018-04-04 David Dudal , Thomas G. Mertens

We report the first predictions of elliptic flow ($v_2$) of identified hadrons at mid-rapidity ($|y| <$ 1.0) in Au+Au collisions at $E_{lab} =$ 6.7, 8, 11, and 25 A GeV using the Parton Hadron String Dynamics (PHSD) model. The transverse…

高能物理 - 唯象学 · 物理学 2024-07-09 B. Towseef , M. Farooq , V. Bairathi , B. Waseem , S. Kabana , S. Ahmad

We present results of a phase space coalescence approach within the UrQMD transport and -hybrid model for a very wide range of beam energies from SIS to LHC. The coalescence model is able to qualitatively describe the whole range of…

高能物理 - 唯象学 · 物理学 2022-03-17 Paula Hillmann , Katharina Käfer , Jan Steinheimer , Volodymyr Vovchenko , Marcus Bleicher

In this work, a Bayesian statistical framework is employed to analyze particle yield ratios in Au-Au collisions, utilizing Non-Extensive Statistics (NES). Through Markov Chain Monte Carlo (MCMC) sampling, we systematically estimate key…

高能物理 - 唯象学 · 物理学 2025-11-21 Randy Dobler , Juliana O. Costa , Marcelo D. Alloy , Débora P. Menezes

The flow harmonic $v_{n}$ and the emission source radii $R_{\text{out}}$, $R_{\text{side}}$ and $R_{\text{long}}$ are studied for a broad range of centrality selections and beam collision energies in Au+Au ($\sqrt{s_{NN}}= 7.7 - 200$ GeV)…

核实验 · 物理学 2015-06-22 Roy A. Lacey

Drag and diffusion coefficients of the Heavy Quarks (HQs), such as charm and bottom, are one of the prime tools for discerning the properties of the deconfined QCD medium created in the Heavy Ion Collisions experiments. The innate…

高能物理 - 唯象学 · 物理学 2024-09-19 Surasree Mazumder , Natasha Sharma , Lokesh Kumar

We consider the effect of the stochastic color field fluctuations in addition to the collisional as well as the radiative energy losses in the propagation of charm quarks in the hot and dense deconfined medium of quarks and gluons created…

高能物理 - 唯象学 · 物理学 2019-02-20 Ashik Ikbal Sheikh , Zubayer Ahammed , M. G. Mustafa

We study heavy-quarkonia suppression under final-state multiple scatterings in most central Au~+~Au collisions at RHIC energy. We first calculate the survival probability of a heavy quarkonium under multiple scattering in Bjorken's…

高能物理 - 唯象学 · 物理学 2010-11-02 Bin Wu , Bo-Qiang Ma

We calculate the transport coefficients, drag and momentum diffusion, of a heavy quark in a thermalized plasma of light quarks in the background of Polyakov loop. Quark thermal mass and the gluon Debye mass are calculated in a non-trivial…

高能物理 - 唯象学 · 物理学 2019-12-18 Balbeer Singh , Aman Abhishek , Santosh K Das , Hiranmaya Mishra

Improved constraints on current model parameters in a heavy-ion collision model are established using the latest measurements from three distinct collision systems. Various observables are utilized from Au--Au collisions at…

高能物理 - 唯象学 · 物理学 2024-11-05 Maxim Virta , Jasper Parkkila , Dong Jo Kim

Heavy flavor physics in high-energy heavy-ion collisions is a promising and active area to study the mass dependence of the "jet quenching" effects both at the RHIC and the LHC. In this talk, we present the first theoretical study on the…

核理论 · 物理学 2021-02-03 Sa Wang , Wei Dai , Jun Yan , Ben-Wei Zhang , Enke Wang

We review the recent results of heavy meson diffusion in thermal hadronic matter. The interactions of D and B-bar mesons with other hadrons (light mesons and baryons) are extracted from effective field theories based on chiral and…

Nuclear modification factor $R_{AA}(p_{T})$ for large transverse momentum pion spectra in $Pb+Pb$ collisions at $\sqrt{s}=2.76$ TeV is predicted within the NLO perturbative QCD parton model. Effect of jet quenching is incorporated through…

核理论 · 物理学 2013-05-29 Xiao-Fang Chen , Tetsufumi Hirano , Enke Wang , Xin-Nian Wang , Hanzhong Zhang

Recent progress in open-heavy-flavor measurements and future experimental upgrades are bringing heavy-flavor physics into the precision era, allowing for strong quantitative constraints on the transport properties of heavy quarks in the…

核理论 · 物理学 2018-12-18 Weiyao Ke , Yingru Xu , Steffen A. Bass

Heavy-ion collisions are well described by a dynamical evolution with a long hydrodynamical phase. In this phase the properties of the strongly coupled quark-gluon plasma are reflected in the equation of state (EoS) and the transport…

核理论 · 物理学 2018-12-06 A. Dubla , S. Masciocchi , J. M. Pawlowski , B. Schenke , C. Shen , J. Stachel