Heavy quark interaction in Hot QCD matter: open charm and bottom production in relativistic Heavy-Ion Collisions
type: CreativeWork
description: The Quantum Cromodynamics(QCD) is the non-abelian gauge field theory which describes the strong interaction within the Standard Model. The basic constituents of QCD are quarks and gluons that are confined in hadronic matter: at high temperatures and/or densities quark deconfinement occurs and hadronic matter undergoes a phase transition into a new state of matter, the Quark-Gluon Plasma (QGP). Numerical solutions of QCD on lattice (lQCD) predict that such transition is properly a crossover at almost zero baryon density and with a critical temperature $T_c \approx 155$ $MeV$. The QGP state of matter is still presently studied in current Heavy-Ion Collision (HIC) experiments at the Large Hadron Collider (LHC) at CERN and at the Relativistic Heavy Ion Collider (RHIC) at the Bookhaven National Laboratory. In this scenario Heavy Quarks (HQs), mainly charm and bottom, represent the best probes to study the QGP. They are created at initial stage of HICs due to their large masses by hard perturbative QCD scattering processes and their thermalization time is comparable with the QGP lifetime. Therefore HQs can probe the entire evolution of the fireball carrying more information with respect to their light counterparts.\\ In this thesis we study the HQs dynamics within the QGP by means of a relativistic Boltzmann (BM) transport approach. In this framework we treat non-perturbative QCD effects by mean a Quasi-Particle Model (QPM) in which light quarks and gluons of the bulk are dressed with effective thermal masses and the $T$ dependence of the strength coupling is fitted to lQCD thermodynamics. In this thesis we extend our QPM-Boltzmann approach to a more realistic model in which off-shell dynamics is also taken into account. Furthermore, we discuss the dynamical evolution of charm quark elastic energy loss in a bulk medium at fixed temperature T extending the BM collision integral to include off-shell dynamics. We show the results on the transport coefficients and the time ev…
abstract: The Quantum Cromodynamics(QCD) is the non-abelian gauge field theory which describes the strong interaction within the Standard Model. The basic constituents of QCD are quarks and gluons that are confined in hadronic matter: at high temperatures and/or densities quark deconfinement occurs and hadronic matter undergoes a phase transition into a new state of matter, the Quark-Gluon Plasma (QGP). Numerical solutions of QCD on lattice (lQCD) predict that such transition is properly a crossover at almost zero baryon density and with a critical temperature $T_c \approx 155$ $MeV$. The QGP state of matter is still presently studied in current Heavy-Ion Collision (HIC) experiments at the Large Hadron Collider (LHC) at CERN and at the Relativistic Heavy Ion Collider (RHIC) at the Bookhaven National Laboratory. In this scenario Heavy Quarks (HQs), mainly charm and bottom, represent the best probes to study the QGP. They are created at initial stage of HICs due to their large masses by hard perturbative QCD scattering processes and their thermalization time is comparable with the QGP lifetime. Therefore HQs can probe the entire evolution of the fireball carrying more information with respect to their light counterparts.\\ In this thesis we study the HQs dynamics within the QGP by means of a relativistic Boltzmann (BM) transport approach. In this framework we treat non-perturbative QCD effects by mean a Quasi-Particle Model (QPM) in which light quarks and gluons of the bulk are dressed with effective thermal masses and the $T$ dependence of the strength coupling is fitted to lQCD thermodynamics. In this thesis we extend our QPM-Boltzmann approach to a more realistic model in which off-shell dynamics is also taken into account. Furthermore, we discuss the dynamical evolution of charm quark elastic energy loss in a bulk medium at fixed temperature T extending the BM collision integral to include off-shell dynamics. We show the results on the transport coefficients and the time ev…
author: SAMBATARO, MARIA LUCIA
language: ita
keywords: Quark-Gluon Plasma, Heavy Quarks, Quasi Particle Model, Anisotropic flows
date published: 2022-05-26
date modified: 2026-07-24T01:35:22Z
provider: Università degli Studi di Catania
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Università degli studi di Catania

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property ID: Handle
value: https://hdl.handle.net/20.500.11769/581580