Color-superconducting strangelets in the Nambu–Jona-Lasinio model
O. Kiriyama
DOI 10.1103/PhysRevD.72.054009 · Physical Review D
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Abstract
The two-flavor color-superconducting (2SC) phase in small strangelets is studied. In order to describe the 2SC phase we use the three-flavor Nambu–Jona-Lasinio model. We explicitly take into account finite-size effects by making use of the approximation for the density of states in spherical cavities called multiple reflection expansion (MRE). The thermodynamic potential for the 2SC strangelets is derived in the mean-field approximation with the help of the MRE. We found that 2SC phase survives in small strangelets with a sizable gap. Consequences for the 2SC phases are also discussed.
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