Colour-superconducting strangelets in the Nambu--Jona-Lasinio model

Details Colour-superconducting strangelets in the Nambu--Jona-Lasinio model Colour-superconducting strangelets in the Nambu--Jona-Lasinio model

2005-07-15

arxiv.org/abs/hep-ph/0507188v3

Phys.Rev. D72 (2005) 054009

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 8 figures, typos and an inconsistency between text and Fig. 7 corrected

Scientific paper

10.1103/PhysRevD.72.054009

The two-flavour colour-superconducting (2SC) phase in small strangelets is studied. In order to describe the 2SC phase we use the three-flavour 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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