From Kaon-Nuclear Interactions to Kaon Condensation

Details From Kaon-Nuclear Interactions to Kaon Condensation From Kaon-Nuclear Interactions to Kaon Condensation

1993-04-02

arxiv.org/abs/hep-ph/9304204v1

Nucl.Phys.A567:937-956,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, LaTeX, NORDITA-93/30 N, SUNY-NTG-93-7

Scientific paper

10.1016/0375-9474(94)90335-2

An effective chiral Lagrangian in heavy-fermion formalism whose parameters are constrained by kaon-nucleon and kaon-nuclear interactions next to the leading order in chiral expansion is used to describe kaon condensation in dense ``neutron star" matter. The critical density is found to be robust with respect to the parameters of the chiral Lagrangian and comes out to be $\rho_c\sim (3 - 4)\rho_0$. Once kaon condensation sets in, the system is no longer composed of neutron matter but of nuclear matter. Possible consequences on stellar collapse with the formation of compact ``nuclear stars" or light-mass black holes are pointed out.

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