Results 31 to 40 of about 2,278,514 (231)

Soft Gluon Radiation off Heavy Quarks beyond Eikonal Approximation

open access: yesAdvances in High Energy Physics, 2016
We calculate the soft gluon radiation spectrum off heavy quarks (HQs) interacting with light quarks (LQs) beyond small angle scattering (eikonality) approximation and thus generalize the dead-cone formula of heavy quarks extensively used in the ...
Trambak Bhattacharyya   +2 more
doaj   +1 more source

Quantum Brownian motion of a heavy quark pair in the quark-gluon plasma [PDF]

open access: yesPhysical Review D, 2019
In this paper we study the real-time evolution of heavy quarkonium in the quark-gluon plasma (QGP) on the basis of the open quantum systems approach. In particular, we shed light on how quantum dissipation affects the dynamics of the relative motion of ...
Takahiro Miura   +3 more
semanticscholar   +1 more source

Classical gluon production amplitude in heavy-ion collisions

open access: yesEPJ Web of Conferences, 2016
The initial condition for the formation of the Quark-Gluon Plasma, the distribution of quarks and gluons produced in the initial stages of nuclear collisions, is the fundamental building block of heavy-ion theory.
Chirilli Giovanni Antonio
doaj   +1 more source

Approach to equilibrium of a quarkonium in a quark-gluon plasma [PDF]

open access: yesPhysical Review D, 2018
We derive equations of motion for the reduced density matrix of a heavy quarkonium in contact with a quark-gluon plasma in thermal equilibrium. These equations allow in particular a proper treatment of the regime when the temperature of the plasma is ...
J. Blaizot, M. Escobedo
semanticscholar   +1 more source

The complex heavy-quark potential in an anisotropic quark-gluon plasma — Statics and dynamics

open access: yesJournal of High Energy Physics, 2022
We generalize a complex heavy-quark potential model from an isotropic QCD plasma to an anisotropic one by replacing the Debye mass m D with an anisotropic screening mass depending on the quark pair alignment with respect to the direction of anisotropy ...
Lihua Dong   +4 more
doaj   +1 more source

Data-driven extraction of heavy quark diffusion in quark-gluon plasma [PDF]

open access: yesThe European Physical Journal C, 2019
Heavy quark production provides a unique probe of the quark-gluon plasma transport properties in heavy ion collisions. Experimental observables like the nuclear modification factor RAA\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym}
Shuang Li, J. Liao
semanticscholar   +1 more source

Quasiquarks in two stream system [PDF]

open access: yes, 2001
We study the collective quark excitations in an extremely anisotropic system of two interpenetrating streams of the quark-gluon plasma. In contrast to the gluon modes, all quark ones appear to be stable in such a system. Even more, the quark modes in the
E. Braaten   +17 more
core   +2 more sources

A divergence-free method to extract observables from correlation functions

open access: yesPhysics Letters B, 2015
Correlation functions provide information on the properties of mesons in vacuum and of hot nuclear matter. In this work, we present a new method to derive a well-defined spectral representation for correlation functions.
Si-xue Qin
doaj   +1 more source

Applying Bayesian parameter estimation to relativistic heavy-ion collisions: simultaneous characterization of the initial state and quark-gluon plasma medium [PDF]

open access: yes, 2016
We quantitatively estimate properties of the quark-gluon plasma created in ultrarelativistic heavy-ion collisions utilizing Bayesian statistics and a multiparameter model-to-data comparison.
Jonah E. Bernhard   +4 more
semanticscholar   +1 more source

Holographic Multiquarks in the Quark-Gluon Plasma: A Review

open access: yesAdvances in High Energy Physics, 2011
We review the holographic multiquark states in the deconfined quark-gluon plasma. Nuclear matter can become deconfined by extremely high temperature and/or density. In the deconfined nuclear medium, bound states with colour degrees of freedom are allowed
Piyabut Burikham, Ekapong Hirunsirisawat
doaj   +1 more source

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