Hard-thermal-loop QCD trace anomaly |
| |
Authors: | Nan Su |
| |
Institution: | 1. Fakult?t f??r Physik, Universit?t Bielefeld, D-33615, Bielefeld, Germany
|
| |
Abstract: | 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: | |
本文献已被 SpringerLink 等数据库收录! |
|