Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-12-29
Phys.Lett. B477 (2000) 137-140
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, no figures; made antiparticle gap explicit; to appear Phys. Lett. B
Scientific paper
10.1016/S0370-2693(00)00188-X
We reexamine the quark mass induced term in chiral Lagrangian in color-flavor locking phase in dense QCD, and show that the meson mass term is determined by three independent invariants under chiral-axial symmetry, and a meson mass is given in terms of the quark mass, gap, and the chemical potential by $m_{\pi}^2\sim m_q^2\Delta\bar{\Delta}/\mu^2\ln(\mu^2/\Delta^2)$. Thus mesons become massless as $\mu\to\infty$.
Hong Deog Ki
Lee Taekoon
Min Dong-Pil
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