Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-06-17
Phys.Rev.D81:065022,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 2 figures. v2: title changed, expanded discussion and added example (calculation of <theta^2> at high temperature). P
Scientific paper
10.1103/PhysRevD.81.065022
We construct an effective action for QCD by expanding the quark determinant in powers of the chemical potential at finite temperature in the case of massless quarks. To cut the infinite series we adopt the Weinberg power counting criteria. We compute the minimal effective action (~p^4), expanding in the external momentum, which implies the use of the hard thermal loop approximation. Our main result is a gauge invariant expression for the phase theta of the functional determinant in QCD, and recovers dimensional reduction in the high-temperature limit. We compute, analytically,
Fraga Eduardo S.
Villavicencio C.
No associations
LandOfFree
Weinberg power counting and the quark determinant at small chemical potential does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Weinberg power counting and the quark determinant at small chemical potential, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weinberg power counting and the quark determinant at small chemical potential will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-271828