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Title: Quark mass thresholds in QCD thermodynamics

Abstract

We discuss radiative corrections to how quark mass thresholds are crossed, as a function of the temperature, in basic thermodynamic observables such as the pressure, the energy and entropy densities, and the heat capacity of high temperature QCD. The indication from leading order that the charm quark plays a visible role at surprisingly low temperatures, is confirmed. We also sketch a way to obtain phenomenological estimates relevant for generic expansion rate computations at temperatures between the QCD and electroweak scales, pointing out where improvements over the current knowledge are particularly welcome.

Authors:
;  [1]
  1. Faculty of Physics, University of Bielefeld, D-33501 Bielefeld (Germany)
Publication Date:
OSTI Identifier:
20782935
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.73.085009; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DENSITY; ENERGY DENSITY; ENTROPY; QUANTUM CHROMODYNAMICS; QUARKS; RADIATIVE CORRECTIONS; REST MASS; SPECIFIC HEAT; TEMPERATURE DEPENDENCE; THERMODYNAMICS

Citation Formats

Laine, Mikko, and Schroeder, York. Quark mass thresholds in QCD thermodynamics. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.73.085009.
Laine, Mikko, & Schroeder, York. Quark mass thresholds in QCD thermodynamics. United States. doi:10.1103/PHYSREVD.73.085009.
Laine, Mikko, and Schroeder, York. Sat . "Quark mass thresholds in QCD thermodynamics". United States. doi:10.1103/PHYSREVD.73.085009.
@article{osti_20782935,
title = {Quark mass thresholds in QCD thermodynamics},
author = {Laine, Mikko and Schroeder, York},
abstractNote = {We discuss radiative corrections to how quark mass thresholds are crossed, as a function of the temperature, in basic thermodynamic observables such as the pressure, the energy and entropy densities, and the heat capacity of high temperature QCD. The indication from leading order that the charm quark plays a visible role at surprisingly low temperatures, is confirmed. We also sketch a way to obtain phenomenological estimates relevant for generic expansion rate computations at temperatures between the QCD and electroweak scales, pointing out where improvements over the current knowledge are particularly welcome.},
doi = {10.1103/PHYSREVD.73.085009},
journal = {Physical Review. D, Particles Fields},
number = 8,
volume = 73,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}
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