Precursor of Color Superconductivity in Hot Quark Matter
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 Tc. 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 Tc. We discuss the possible relevance of the precursor to the observables to be detected in heavy ion collisions.
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