Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-05-10
Phys.Lett. B631 (2005) 157-163
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 10 eps figures, version to appear in Phys. Lett. B. typos corrected
Scientific paper
10.1016/j.physletb.2005.09.055
We show how the quasiparticle picture of quarks changes near but above the critical temperature T_c of the color-superconducting phase transition in the heated quark matter. We demonstrate that a non-Fermi liquid behavior of the matter develops drastically when the diquark coupling constant is increased owing to the coupling of the quark with the pairing soft mode: We clarify that the depression and eventually the appearance of a gap structure in the spectral function as well as the anomalous quark dispersion relation of the quark can be understood in terms of the resonant scattering between the incident quark and a particle near the Fermi surface to make the pairing soft mode.
Kitazawa Masakiyo
Kunihiro Teiji
Nemoto Yukio
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