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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

We investigate the properties of the QCD matter across the deconfinement phase transition. In the scope of the parton-hadron string dynamics (PHSD) transport approach, we study the strongly interacting matter in equilibrium as well as the…

核理论 · 物理学 2015-06-17 O. Linnyk , E. L. Bratkovskaya , W. Cassing , V. P. Konchakovski , V. Ozvenchuk

We study the production dynamics of charm quarks in the parton cascade model for relativistic heavy ion collisions at RHIC and LHC energies. The model is eminently suited for a study of the pre-equilibrium dynamics of charm quarks at modest…

核理论 · 物理学 2019-04-19 Dinesh K. Srivastava , Rupa Chatterjee

We describe the propagation of charm quarks in the quark-gluon plasma (QGP) by means of a Boltzmann transport approach. Non-perturbative interaction between heavy quarks and light quarks have been taken into account through a quasi-particle…

We summarize the results of a recent study of heavy quark production and attenuation in cold nuclear matter. In p+p collisions, we investigate the relative contribution of partonic sub-processes to $D$ meson production and $D$…

高能物理 - 唯象学 · 物理学 2009-11-11 Ivan Vitev

Charm and beauty are heavy quarks with observed masses of 1.28 GeV/$\textit{c}^2$ and 4.18 GeV/$\textit{c}^2$ respectively. They are produced in initial hard scattering processes. Due to their small formation time ($\Delta t \sim0.1…

高能物理 - 实验 · 物理学 2022-08-24 Randhir Singh , Binti Sharma , Renu Bala , Sanjeev Singh Sambyal

We study open charm hadrons production in pp and Au+Au collisions at $\sqrt{s_{\mathrm{NN}}} = 200$~GeV using an improved a multi-phase transport (AMPT) model. Specifically, we show the transverse-momentum spectra and nuclear modification…

高能物理 - 唯象学 · 物理学 2026-01-21 Bijun Fan , Chao Zhang , Liang Zheng , Shusu Shi

It is believed that a novel state of matter - Quark Gluon Plasma (QGP) will be transiently produced if normal hadronic matter is subjected to sufficiently high temperature and/or density. We have investigated the possibility of QGP…

核理论 · 物理学 2009-09-25 Sourav Sarkar

Ultra-relativistic heavy-ion collisions are used to create a deconfined state of quarks and gluons, the quark-gluon plasma (QGP), similar to the matter in the early universe. Dileptons are a unique probe of the QGP. Being emitted during all…

核实验 · 物理学 2025-12-12 R. Bailhache , H. Appelshäuser

The study of heavy-flavour (charm and beauty) production is important to understand the properties of the Quark-Gluon Plasma (QGP) formed in ultra-relativistic heavy-ion collisions, since heavy quarks are produced in the initial stages of…

核实验 · 物理学 2022-09-21 Luuk Vermunt

We extend a previously constructed T-matrix approach to the quark-gluon plasma (QGP) to include the effects of spin-dependent interactions between partons. Following earlier work within the relativistic quark model, the spin-dependent…

高能物理 - 唯象学 · 物理学 2023-08-10 Zhanduo Tang , Ralf Rapp

The dynamics of partons, hadrons and strings in relativistic nucleus-nucleus collisions is analyzed within the novel Parton-Hadron-String Dynamics (PHSD) transport approach, which is based on a dynamical quasiparticle model for partons…

We obtain the thermal photon and dilepton production rates in a strongly coupled quark-gluon plasma (QGP) at both zero and nonzero baryon chemical potential using a bottom-up Einstein-Maxwell-Dilaton (EMD) holographic model that is in good…

高能物理 - 唯象学 · 物理学 2016-02-11 Stefano Ivo Finazzo , Romulo Rougemont

We extend our investigation of heavy quark transport coefficients in the effective dynamical quasiparticle model (DQPM) -- which reproduces nonperturbative QCD phenomena in the strongly interacting quark-gluon plasma (sQGP) according to…

高能物理 - 唯象学 · 物理学 2025-07-08 Ilia Grishmanovskii , Taesoo Song , Carsten Greiner , Elena Bratkovskaya

In the last decade a Quasi-Particle Model (QPM) has been developed to study charm quark dynamics in ultra-relativistic heavy-ion collisions supplying a satisfactory description of the main observables for $D$ meson and providing an estimate…

高能物理 - 唯象学 · 物理学 2023-04-07 Maria Lucia Sambataro , Vincenzo Minissale , Salvatore Plumari , Vincenzo Greco

The comparison of angular correlations between charmed mesons and charged hadrons produced in pp, p-Pb and Pb-Pb collisions can give insight into the mechanisms through which charm quarks lose energy in a QGP medium, produced in…

高能物理 - 实验 · 物理学 2019-08-13 Fabio Colamaria

We investigate the role of inelastic processes in the strongly interacting quark-gluon plasma (sQGP) based on the effective dynamical quasi-particle model (DQPM). In the DQPM the non-perturbative properties of the sQGP at finite temperature…

高能物理 - 唯象学 · 物理学 2025-03-03 Ilia Grishmanovskii , Olga Soloveva , Taesoo Song , Carsten Greiner , Elena Bratkovskaya

We calculate excitation functions for open charm mesons in $Au+Au$ reactions from AGS to RHIC energies within the HSD transport approach which is based on string, quark, diquark ($q, \bar{q}, qq, \bar{q}\bar{q}$) and hadronic degrees of…

核理论 · 物理学 2009-11-06 W. Cassing , E. L. Bratkovskaya , A. Sibirtsev

The quark-gluon plasma (QGP) is a strongly coupled medium in which both open and hidden charm particles experience substantial nonperturbative interactions. This poses a major challenge for a quantitative description of charmonium transport…

核理论 · 物理学 2026-03-06 Kaiyu Fu , Biaogang Wu , Ralf Rapp

We review the transport properties of the strongly interacting quark-gluon plasma (QGP) created in heavy-ion collisions at ultrarelativistic energies, i.e. out-of equilibrium, and compare them to the equilibrium properties. The description…

核理论 · 物理学 2021-12-15 Olga Soloveva , Pierre Moreau , Elena Bratkovskaya