학술논문

Yang-Mills effective action from QCD at finite chemical potential
Document Type
article
Source
Brazilian Journal of Physics. March 2007 37(1a)
Subject
Effective Yang-Mills action
Perturbative QCD
Finite chemical potential
Language
English
ISSN
0103-9733
Abstract
We present a construction of an effective Yang-Mills action for QCD, from the expansion of the fermionic determinant in terms of powers of the chemical potential at high temperature for the case of massless quarks. We analyze this expansion in the perturbative region and find that it gives extra spurious information. We propose for the non-perturbative sector a simplified effective action which, in principle, contains only the relevant information.