Mean Field, Instantons and Finite Baryon Density

Details Mean Field, Instantons and Finite Baryon Density Mean Field, Instantons and Finite Baryon Density

1998-07-01

arxiv.org/abs/hep-ph/9807215v2

Nucl.Phys. A642 (1998) 58-64

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages LaTeX, 3 eps-figures included, to appear in the Proc. of the 'QCD at Finite Baryon Density'-Workshop (Bielefeld, 27.-3

Scientific paper

10.1016/S0375-9474(98)00499-0

Instantons create a non-local interaction between the quarks, which at finite baryon density leads to the formation of a scalar diquark condensate and color superconductivity. A mean field approach leads to a self-consistent description of the $<\bar q q>$ and $$ condensates and shows the inevitability of a BCS type instability at the Fermi surface. The role of the rearrangement of the instanton ensemble for the QCD phase transitions is also discussed.

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