Hard-thermal-loop QCD trace anomaly

• Authors: Nan Su
• Languages of publication: EN

Abstracts

EN

In this proceedings I summarize results of QCD trace anomaly from recent three-loop hard-thermal-loop perturbation theory (HTLpt) calculations. I focus on the trace anomaly scaled by T
2 for pure-glue and N
f = 3 QCD. The comparison to available lattice data suggests that for pure-glue QCD agreement between HTLpt results and lattice data for the trace anomaly begins at temperatures above 8 T
c while when including quarks (N
f = 3) agreement begins already at temperatures above 2 T
c. The results in both cases indicate that at very high temperatures the T
2-scaled trace anomaly increases with temperature in accordance with the predictions of HTLpt.

Keywords

EN

thermodynamics; resummation; hard-thermal-loop perturbation theory; quantum chromodynamics; quark-gluon plasma

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2012
• Volume: 10
• Issue: 6
• Pages: 1379-1381

Dates

published

1 - 12 - 2012

online

4 - 12 - 2012

Contributors

author

Nan Su

• Fakultät für Physik, Universität Bielefeld, D-33615, Bielefeld, Germany

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Identifiers

DOI

10.2478/s11534-012-0046-7