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We simulate the heavy quarkonium equilibration through transport in a static and homogeneous quark-gluon plasma (QGP) box within the semi-classical Boltzmann approach incorporating both the leading-order and next-to-leading-order…

High Energy Physics - Phenomenology · Physics 2025-08-19 Shouxing Zhao , Min He

We treat heavy quark as an open quantum system in the hot medium and rederive the Stochastic Schr\"odinger Equation (SSE) from the full Schr\"odinger equation for both heavy quarks and the medium. We apply the SSE to the dynamical…

Nuclear Theory · Physics 2023-03-10 Zhuoxuan Xie , Baoyi Chen

The heavy quark propagation behavior inside the quark-gluon plasma (QGP), is usually described in terms of the Boltzmann dynamics, which can be reduced to the Langevin approach by assuming a small momentum transfer for the scattering…

High Energy Physics - Phenomenology · Physics 2019-06-05 Shuang Li , Chaowen Wang , Renzhuo Wan , Jinfeng Liao

In a quasi-particle model of QCD matter at finite temperature with thermal masses for quarks and gluons from hard thermal loops, the equation of state (EOS) can be described by an effective temperature dependence of the strong coupling…

High Energy Physics - Phenomenology · Physics 2023-12-12 Feng-Lei Liu , Xiang-Yu Wu , Shanshan Cao , Guang-You Qin , Xin-Nian Wang

Electric conductivity is sensitive to effective cross sections among the particles of the partonic medium. We investigate the electric conductivity of a hot plasma of quarks and gluons, solving the relativistic Boltzmann equation. In order…

Nuclear Theory · Physics 2014-11-18 Moritz Greif , Ioannis Bouras , Zhe Xu , Carsten Greiner

While the existence of a strongly interacting state of matter, known as 'quark-gluon plasma' (QGP), has been established in heavy ion collision experiments in the past decade, the task remains to map out the transition from the hadronic…

Nuclear Theory · Physics 2013-06-04 Jussi Auvinen , Hannah Petersen

The quark gluon plasma produced in ultra-relativistic heavy-ion collisions exhibits remarkable features. It behaves like a nearly perfect liquid with a small shear viscosity to entropy density ratio and leads to the quenching of highly…

High Energy Physics - Phenomenology · Physics 2015-03-25 Jan Uphoff , Oliver Fochler , Florian Senzel , Christian Wesp , Zhe Xu , Carsten Greiner

While perturbative QCD is sufficient for understanding the color, mass and energy dependences of parton energy loss and jet quenching at large transverse momentum in heavy-ion collisions, a simultaneous description of heavy flavor nuclear…

High Energy Physics - Phenomenology · Physics 2022-01-03 Wen-Jing Xing , Guang-You Qin , Shanshan Cao

We employ the Boltzmann equation for describing hadron production from a quark-gluon plasma (QGP) in ultrarelativistic heavy-ion collisions. We propose resonance formation in quark-antiquark scattering as the dominant meson-production…

High Energy Physics - Phenomenology · Physics 2008-11-26 L. Ravagli , R. Rapp

We present the energy density and flux distribution of a heavy quark moving through high temperature QCD plasmas and compare them with those in the strongly coupled N = 4 SYM plasma. The Boltzmann equation is reformulated as a Fokker-Planck…

Nuclear Theory · Physics 2011-10-05 Juhee Hong

We report on a work in progress, whose goal is a systematic field theoretical derivation of the quantum transport equations for baryon production in the electroweak plasma at a first order phase transition in the limit of slowly varying…

High Energy Physics - Phenomenology · Physics 2007-05-23 Michael Joyce , Kimmo Kainulainen , Tomislav Prokopec

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…

Nuclear Theory · Physics 2017-05-24 G. Coci , F. Scardina , V. Greco

We develop a new heavy quark transport model, QLBT, to simulate the dynamical propagation of heavy quarks inside the quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. Our QLBT model is based on the linear Boltzmann…

High Energy Physics - Phenomenology · Physics 2022-05-11 Feng-Lei Liu , Wen-Jing Xing , Xiang-Yu Wu , Guang-You Qin , Shanshan Cao , Xin-Nian Wang

By coupling the Boltzmann transport equations of both quarkonium and open heavy quarks, we investigate their dynamical evolution inside the quark-gluon plasma and study quarkonium production in heavy ion collisions. The Boltzmann transport…

High Energy Physics - Phenomenology · Physics 2019-02-20 Xiaojun Yao , Weiyao Ke , Yingru Xu , Steffen Bass , Berndt Müller

We derive the quantum Boltzmann equation (QBE) of composite fermions at/near the $\nu = 1/2$ state using the non-equilibrium Green's function technique. The lowest order perturbative correction to the self-energy due to the strong gauge…

Condensed Matter · Physics 2009-10-28 Yong Baek Kim , Patrick A. Lee , Xiao-Gang Wen

The production and space-time evolution of heavy quarks and J/psi in the quark gluon plasma is studied within the partonic transport model Boltzmann Approach to MultiParton Scatterings (BAMPS). This framework allows interactions among all…

High Energy Physics - Phenomenology · Physics 2015-06-12 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

We develop a set of coupled Boltzmann equations to describe the dynamical evolution of heavy quarks and quarkonia inside the quark-gluon plasma. The quarkonium dissociation and recombination terms are calculated from pNRQCD. Their interplay…

Nuclear Theory · Physics 2019-01-23 Xiaojun Yao , Weiyao Ke , Yingru Xu , Steffen Bass , Berndt Müller

We investigate the transport properties of the strongly interacting quark-gluon plasma (sQGP) by comparing the role of elastic and inelastic (radiative) processes in the sQGP medium within the effective dynamical quasi-particle model…

High Energy Physics - Phenomenology · Physics 2025-03-04 Ilia Grishmanovskii , Taesoo Song , Olga Soloveva , Carsten Greiner , Elena Bratkovskaya

We consider the meson and baryon production in the quark-gluon plasma as applied to the early Universe and ultrarelativistic heavy ion collisions in collider. The essential feature of our investigation is to take into account a potential…

Nuclear Theory · Physics 2020-04-16 Yuriy Ostapov

The equivalence between thermal field theory and the Boltzmann transport equation is investigated at higher orders in the context of quantum electrodynamics. We compare the contributions obtained from the collisionless transport equation…

High Energy Physics - Theory · Physics 2015-03-04 F. T. Brandt , R. B. Ferreira , J. F. Thuorst
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