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Double-Lambda hypernuclei and the nuclear medium effective Lambda Lambda interaction

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Double-Lambda hypernuclei and the nuclear medium effective Lambda Lambda interaction

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dc.contributor.author Caro, José
dc.contributor.author García Recio, Carmen
dc.contributor.author Nieves Pamplona, Juan Miguel
dc.date.accessioned 2014-10-16T12:26:43Z
dc.date.available 2014-10-16T12:26:43Z
dc.date.issued 1999
dc.identifier.citation Caro, José García Recio, Carmen Nieves Pamplona, Juan Miguel 1999 Double-Lambda hypernuclei and the nuclear medium effective Lambda Lambda interaction Nuclear Physics A 623 3 529 547
dc.identifier.uri http://hdl.handle.net/10550/39224
dc.description.abstract We fit the S-1(0) Lambda Lambda interaction in the nuclear medium to the masses of the experimentally known double-Lambda hypernuclei: He-6(Lambda Lambda), Be-10(Lambda Lambda) and B-13(Lambda Lambda). We derive this effective interaction from OBE Julich Lambda Lambda-type potentials and using both Hartree-Fock and variational approaches. We find that the inclusion of nn correlations in the variational scheme leads to significant differences and a better understanding of the dynamical features of the system. We investigate the sensitivity of the binding energies and the mesonic decay widths of the above double-Lambda hypernuclei to the omega Lambda Lambda coupling and the form factor at the sigma Lambda Lambda vortex, We also use this effective interaction to predict binding energies and pionic decay widths of heavier double-Lambda hypernuclei, not discovered yet. Finally, we discard the existence of S-1(0) Lambda Lambda bound states provided the Lambda Lambda-Xi N coupling can be neglected.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics A, 1999, vol. 623, num. 3, p. 529-547
dc.subject Física
dc.title Double-Lambda hypernuclei and the nuclear medium effective Lambda Lambda interaction
dc.type journal article es_ES
dc.date.updated 2014-10-16T12:26:43Z
dc.identifier.doi 10.1016/S0375-9474(98)00640-X
dc.identifier.idgrec 068609
dc.rights.accessRights open access es_ES

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