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29 March 2024
 
  » arxiv » hep-ph/0101189

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Meson Exchange Effect on Color Superconductivity
Youngman Kim ; Young-Ho Song ; Dong-Pil Min ;
Date 17 Dec 2000
Journal Phys.Rev. D64 (2001) 014026
Subject hep-ph
AbstractWe investigate the effects of pion and gluon exchanges on the formation of two-flavor color superconductivity at moderate density, $mu <1 GeV$. The chiral quark model proposed by Manohar and Georgi containing pions as well as gluons is employed to show that the pion exchange reduces substantially the value of the superconducting gap gotten with the gluon exchange only. It turns out that the pion exchanges produce a repulsion between quark-quark pair in a spin and isospin singlet state. We suggest that the phase consisiting of pions, gluons and quarks is one of the candidates of in-medium QCD phase at moderate density.
Source arXiv, hep-ph/0101189
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