QCD Effective action at high temperature and small chemical potential

Details QCD Effective action at high temperature and small chemical potential QCD Effective action at high temperature and small chemical potential

2006-08-14

arxiv.org/abs/hep-ph/0608146v1

Nucl.Phys.A785:238-240,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages. To appear in the proceedings of the 7th Conference on Strong & Electroweak Matter (SEWM06), BNL, May 2006

Scientific paper

10.1016/j.nuclphysa.2006.11.076

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.

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