Work

Quark spectral density and strongly-coupled quark-gluon plasma

Year: 2011

Type: article

Abstract: The maximum entropy method is used to compute the dressed-quark spectral density from the self-consistent numerical solution of a rainbow truncation of QCD's gap equation at temperatures above that for which chiral symmetry is restored. In addition to the normal and plasmino modes, the spectral function also exhibits an essentially nonperturbative zero mode for temperatures extending to 1.4--1.8 times the critical temperature, ${T}_{c}$. In the neighborhood of ${T}_{c}$, this long-wavelength mode contains the bulk of the spectral strength and as long as this mode persists, the system may fairly be described as a strongly-coupled state of matter.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.84.014017

Authors: Si-xue Qin, Lei Chang, Yu-xin Liu, Craig D. Roberts

Institutions: Peking University, State Key Laboratory of Nuclear Physics and Technology, Argonne National Laboratory

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: U.S. Department of Energy

OpenAlex ID: W1910733610

FWCI: 3.938

Cites: 34

Cited by: 57

Related to: 10