Quark mass thresholds in QCD thermodynamics

Journal Article · Sat Apr 15 00:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.73.085009· OSTI ID:20782935

Laine, Mikko; Schroeder, York ^[1]

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1. Faculty of Physics, University of Bielefeld, D-33501 Bielefeld (Germany)

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.

• OSTI ID: 20782935
• Journal Information: Physical Review. D, Particles Fields, Vol. 73, Issue 8; Other Information: DOI: 10.1103/PhysRevD.73.085009; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DENSITY
ENERGY DENSITY
ENTROPY
QUANTUM CHROMODYNAMICS
QUARKS
RADIATIVE CORRECTIONS
REST MASS
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
THERMODYNAMICS