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Title: Effects of flavor asymmetric media on pion and kaon properties
Authors: Sousa, C. A. de 
Ruivo, M. C. 
Issue Date: 1998
Citation: Nuclear Physics A. 629:1-2 (1998) 552-555
Abstract: We investigate the behaviour of pion and kaon properties in dense asymmetric and neutron matter in the context of a generalized three-flavor Nambu-Jona-Lasinio model, focussing mainly on Pauli blocking and Fermi sea effects. Two main features are discussed: the splitting between charged mesons and the appearance at a low density of low-lying modes which are excitations of the Fermi sea. The contribution of the low-lying modes to the satisfaction of PCAC relations becomes more and more important as the density increases.
DOI: 10.1016/S0375-9474(97)00736-7
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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