Chromomagnetic Catalysis of Color Superconductivity in a (2+1)-dimensional NJL Model

Details Chromomagnetic Catalysis of Color Superconductivity in a (2+1)-dimensional NJL Model Chromomagnetic Catalysis of Color Superconductivity in a (2+1)-dimensional NJL Model

2000-11-22

arxiv.org/abs/hep-ph/0011273v1

Phys.Rev. D64 (2001) 014038

Physics

High Energy Physics

High Energy Physics - Phenomenology

32 pages, 2 figures, revtex

Scientific paper

10.1103/PhysRevD.64.014038

The influence of a constant uniform external chromomagnetic field $H$ on the formation of color superconductivity has been investigated. The consideration was performed in the framework of a (2+1)-dimensional Nambu--Jona-Lasinio model with two different four-fermionic structures responsible for $<\bar qq>$ and diquark $$ condensates. In particular, it was shown that there exists a critical value $H_c$ of the external chromomagnetic field such that at $H>H_c$ a nonvanishing diquark condensate is dynamically created (the so-called chromomagnetic catalysis effect of color superconductivity). Moreover, external chromomagnetic fields may in some cases enhance the diquark condensate of color superconductivity.

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