Dimensionally reduced QCD at high temperature

作者：Moeller Jan; Schroeder York

来源：Progress in Particle and Nuclear Physics, 2012, 67(2): 168-172.

DOI：10.1016/j.ppnp.2011.12.012

• Finite-temperature field theory
• Quantum Chromodynamics
• Effective theories
• Perturbation theory
• Integration by parts

Finite-temperature QCD at high temperature T exhibits three different momentum scales T, gT and g(2)T. Naive perturbation theory in a small gauge coupling g does not work beyond leading order. In the framework of effective theories, a separation of contributions originating from the different momentum scales can be systematically performed, allowing for higher-order weak-coupling expansions. In this talk, we review finite-temperature QCD in the EQCD/MQCD framework, and outline a specific high-precision calculation of matching coefficients therein.

• 出版日期2012-4