SciELO - Scientific Electronic Library Online

vol.37 issue1AColor flavor locked phase transition in strange quark matterCold and dense perturbative Yukawa theory with massive fermions author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Brazilian Journal of Physics

Print version ISSN 0103-9733
On-line version ISSN 1678-4448


VILLAVICENCIO, C.  and  FRAGA, E. S.. Yang-Mills effective action from QCD at finite chemical potential. Braz. J. Phys. [online]. 2007, vol.37, n.1a, pp.23-25. ISSN 0103-9733.

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.

Keywords : Effective Yang-Mills action; Perturbative QCD; Finite chemical potential.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License