Precursor of Color Superconductivity

Details Precursor of Color Superconductivity Precursor of Color Superconductivity

2002-12-06

arxiv.org/abs/hep-ph/0212096v1

Nucl.Phys. A721 (2003) 285-288

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 5 figures, Talk presented at the XVIth International Conference on Particles and Nuclei (PANIC02), Osaka, Japan, Sep.

Scientific paper

10.1016/S0375-9474(03)01051-0

We investigate possible precursory phenomena of color superconductivity at finite temperature $T$ with an effective theory of QCD. It is found that the fluctuation of the diquark pair field exists with a prominent strength even well above the critical temperature $T_c$. We show that such a fluctuaiton forms a collective mode, the corresponding pole of which approaches the origin as $T$ is lowered to $T_c$ in the complex energy plane. We discuss the possible relevance of the precursor to the observables to be detected in heavy-ion collisions.

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