Non-Fermi Liquid Behavior Induced by Resonant Diquark-pair Scattering in Heated Quark Matter

Abstract

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.

6 pages, 10 eps figures, version to appear in Phys. Lett. B. typos corrected

References in corpus (3)

• Non-Fermi Liquid Effects in QCD at High Density
• Non-Fermi-Liquid Specific Heat of Normal Degenerate Quark Matter
• Fermionic dispersion relations in ultradegenerate relativistic plasmas beyond leading logarithmic order

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