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dc.contributor.author | Ramos Gómez, Àngels | |
dc.contributor.author | Oset Báguena, Eulogio | |
dc.date.accessioned | 2015-09-04T07:57:57Z | |
dc.date.available | 2015-09-04T07:57:57Z | |
dc.date.issued | 2000 | |
dc.identifier.citation | Ramos Gómez, Àngels Oset Báguena, Eulogio 2000 The properties of (K)over-bar in the nuclear medium Nuclear Physics A 671 1-4 481 502 | |
dc.identifier.uri | http://hdl.handle.net/10550/46830 | |
dc.description.abstract | The self-energy of the K^- meson in nuclear matter is calculated in a self-consistent microscopic approach, using a \bar{K}N interaction obtained from the lowest-order meson-baryon chiral Lagrangian. The effective \bar{K}N interaction in the medium is derived by solving the coupled-channel Bethe-Salpeter equation including Pauli blocking on the nucleons, mean-field binding potentials for the baryons and the self-energy of the \pi and \bar{K} mesons. The incorporation of the self-consistent {\bar K} self-energy in the description, in addition to the Pauli blocking effects, yields a weaker attractive in-medium {\bar K}N interaction and a \Lambda(1405) which dissolves faster with increasing matter density, as a result of the {\bar K} spectral function being spread out over a wide range of energies. These effects are further magnified when the intermediate pions are dressed. | |
dc.language.iso | eng | |
dc.relation.ispartof | Nuclear Physics A, 2000, vol. 671, num. 1-4, p. 481-502 | |
dc.subject | Física | |
dc.title | The properties of (K)over-bar in the nuclear medium | |
dc.type | journal article | es_ES |
dc.date.updated | 2015-09-04T07:57:57Z | |
dc.identifier.doi | 10.1016/S0375-9474(99)00846-5 | |
dc.identifier.idgrec | 079403 | |
dc.rights.accessRights | open access | es_ES |