Condition for gapless color-antitriplet excitations in Nambu-Jona-Lasinio models


Sandin F., Oztas A. M.

PHYSICAL REVIEW C, cilt.73, sa.3, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 73 Konu: 3
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1103/physrevc.73.035203
  • Dergi Adı: PHYSICAL REVIEW C

Özet

We present an exact condition for the existence of gapless quasiparticle excitations in Nambu-Jona-Lasinio models of color superconducting quark matter with a quark-quark interaction in the scalar color-antitriplet channel. The condition can be represented by a rotated ellipse in the plane of mass and chemical potential differences for the paired quark fields.