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相关论文: Heavy quark dynamics in the QGP: R_AA and v_2 from…

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The drag and diffusion coefficients of heavy baryons ($\Lambda_c$ and $\Lambda_b$) in the hadronic phase created in the latter stage of the heavy-ion collisions at RHIC and LHC energies have been evaluated recently. In this work we compute…

Thermalization and collective flow of charm (c) and bottom (b) quarks in ultra-relativistic heavy-ion collisions are evaluated based on elastic parton rescattering in an expanding quark-gluon plasma (QGP). We show that resonant interactions…

核理论 · 物理学 2008-11-26 Hendrik van Hees , Vincenzo Greco , Ralf Rapp

A refined version of a multi-step calculation of heavy-flavor observables in pp and AA collisions has been developed, based on pQCD at NLO accuracy followed by parton shower evolution to describe heavy-quark production and on the…

高能物理 - 唯象学 · 物理学 2012-08-06 W. M. Alberico , A. Beraudo , A. De Pace , M. Monteno , A. Molinari , M. Nardi , F. Prino

We have implemented a Langevin approach for the transport of heavy quarks in the UrQMD hybrid model. The UrQMD hybrid approach provides a realistic description of the background medium for the evolution of relativistic heavy ion collisions.…

高能物理 - 唯象学 · 物理学 2016-01-13 Thomas Lang , Hendrik van Hees , Jan Steinheimer , Marcus Bleicher

Heavy quarks are valuable probes of the electromagnetic field and the initial condition of the quark-gluon plasma (QGP) matter produced in high-energy nuclear collisions. Within an improved Langevin model that is coupled to a…

核理论 · 物理学 2022-05-18 Ze-Fang Jiang , Shanshan Cao , Wen-Jing Xing , Xiang-Yu Wu , C. B. Yang , Ben-Wei Zhang

Heavy flavor particles provide important probes of the microscopic structure and thermodynamic properties of the quark-gluon plasma (QGP) produced in high-energy nucleus-nucleus collisions. We study the energy loss and flow of charm and…

高能物理 - 唯象学 · 物理学 2024-03-13 Shu-Qing Li , Wen-Jing Xing , Shanshan Cao , Guang-You Qin

We study heavy quark energy loss and thermalization in hot and dense nuclear medium. The diffusion of heavy quarks is calculated via a Langevin equation, both for a static medium as well as for a quark-gluon plasma (QGP) medium generated by…

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

A snapshot of the results for heavy-flavour observables in heavy-ion (AA) collisions at RHIC and LHC obtained with our transport calculations is displayed. The initial charm and beauty production is simulated through pQCD tools…

高能物理 - 唯象学 · 物理学 2015-06-16 A. Beraudo , A. De Pace , M. Monteno , F. Prino , W. M. Alberico , A. Molinari , M. Nardi

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

Heavy-quark observables in ultrarelativistic heavy-ion collisions, like the nuclear modification factor and the elliptic flow, give insight into the mechanisms of high-momentum suppression and low-momentum thermalization of heavy quarks.…

核理论 · 物理学 2016-04-27 Marlene Nahrgang , Jörg Aichelin , Pol Bernard Gossiaux , Klaus Werner

Production, elliptic flow and the nuclear modification factor of charm and bottom quarks are studied in central and non-central heavy-ion collisions at RHIC and LHC using the partonic transport model Boltzmann Approach of MultiParton…

高能物理 - 唯象学 · 物理学 2011-02-11 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

Production and space-time evolution of heavy quarks in central and non-central heavy-ion collisions at RHIC and LHC are studied with the partonic transport model Boltzmann Approach of MultiParton Scatterings (BAMPS). In addition to the…

高能物理 - 唯象学 · 物理学 2011-04-05 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

We discuss recent developments in assessing heavy-quark interaction in the Quark-Gluon Plasma (QGP). While induced gluon radiation is expected to be the main energy-loss mechanism for fast-moving quarks, we focus on elastic scattering which…

高能物理 - 唯象学 · 物理学 2009-11-11 R. Rapp , H. van Hees

We study the evolution of the quark-gluon composition of the plasma created in ultra-Relativistic Heavy-Ion Collisions (uRHIC's) employing a partonic transport theory that includes both elastic and inelastic collisions plus a mean fields…

核理论 · 物理学 2013-12-09 F. Scardina , M. Colonna , S. Plumari , V. Greco

The drag and diffusion coefficients of charm and bottom quarks propagating through quark gluon plasma (QGP) have been evaluated within the framework of perturbative Quantum Chromodynamics (pQCD). Both radiative and collisional processes of…

核理论 · 物理学 2012-02-08 Santosh K Das , Jan-e Alam

We assess transport properties of heavy quarks in the Quark-Gluon Plasma (QGP) using static heavy-quark (HQ) potentials from lattice-QCD calculations in a Brueckner many-body T-matrix approach to evaluate elastic heavy-quark-light-quark…

高能物理 - 唯象学 · 物理学 2009-07-22 H. van Hees , M. Mannarelli , Vincenzo Greco , Ralf Rapp

We present recent results for heavy-flavor observables in nucleus-nucleus collisions at LHC energies, obtained with the POWLANG transport setup. The initial creation of c-cbar and b-bbar pairs is simulated with a perturbative QCD approach…

高能物理 - 唯象学 · 物理学 2015-09-15 M. Nardi , A. Beraudo , A. De Pace , M. Monteno , F. Prino

Heavy quarks produced in the heavy ion collisions loose energy while propagting in the hot partonic matter which finally fragment to heavy ($D$ or $B$) mesons. The energy loss suffered by the heavy quarks is imprinted in the nuclear…

高能物理 - 唯象学 · 物理学 2024-10-10 Somnath De , Sudipan De , Prashant Shukla

Production and elliptic flow of heavy quarks are investigated in nucleus-nucleus collisions at RHIC and LHC within the Boltzmann Approach of MultiParton Scatterings (BAMPS). The initial heavy quark yield is estimated with the leading order…

高能物理 - 唯象学 · 物理学 2014-11-20 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

The double coherent and non-coherent diffractive production of heavy quark - antiquark pairs ($Q \bar{Q}$) in heavy ion scattering at high energies (LHC) is considered. The total and differential cross sections of these processes with the…