Precursor of Color Superconductivity in Hot Quark Matter
Nuclear Theory
2008-11-26 v2 Superconductivity
High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
We investigate possible precursory phenomena of color superconductivity in quark matter at finite temperature T with use of a simple Nambu-Jona-Lasinio model. It is found that the fluctuating pair field exists with a prominent strength even well above the critical temperature T_c. We show that the collective pair field has a complex energy located in the second Riemann sheet, which approaches the origin as T is lowered to T_c. We discuss the possible relevance of the precursor to the observables to be detected in heavy ion collisions.
Keywords
Cite
@article{arxiv.nucl-th/0111022,
title = {Precursor of Color Superconductivity in Hot Quark Matter},
author = {M. Kitazawa and T. Koide and T. Kunihiro and Y. Nemoto},
journal= {arXiv preprint arXiv:nucl-th/0111022},
year = {2008}
}
Comments
5 pages, 3 figures, version to appear in Phys. Rev. D. Discussions are enlarged on the physical origin of the large fluctuation of the pair field and its phenomenological consequences. References are added