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SU(6) extension of the Weinberg-Tomozawa meson-baryon Lagrangian

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SU(6) extension of the Weinberg-Tomozawa meson-baryon Lagrangian

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dc.contributor.author García Recio, Carmen
dc.contributor.author Nieves Pamplona, Juan Miguel
dc.contributor.author Salcedo, Lorenzo Luis
dc.date.accessioned 2014-10-22T10:56:06Z
dc.date.available 2014-10-22T10:56:06Z
dc.date.issued 2006
dc.identifier.citation García Recio, Carmen Nieves Pamplona, Juan Miguel Salcedo, Lorenzo Luis 2006 SU(6) extension of the Weinberg-Tomozawa meson-baryon Lagrangian Physical Review D 74 3 034025
dc.identifier.uri http://hdl.handle.net/10550/39296
dc.description.abstract A consistent SU(6) extension of the Weinberg-Tomozawa meson-baryon chiral Lagrangian is constructed which incorporates vector meson and baryon decuplet degrees of freedom. The corresponding Bethe-Salpeter approximation predicts the existence of an isoscalar spin-parity 3/2 K(*)N bound state (strangeness +1) with a mass around 1.7-1.8 GeV. It is the highest hypercharge state of an antidecuplet SU(3) representation and it is unstable through K(*) decay. The estimated width of this state (neglecting d-wave KN decay) turns out to be small (Gamma <= 15 MeV). Clear signals of this resonance would be found in reactions like gamma p ->(K) over bar (0)pK(+)pi(-) by looking at the three body pK(+)pi(-) invariant mass.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2006, vol. 74, num. 3, p. 034025
dc.subject Física
dc.title SU(6) extension of the Weinberg-Tomozawa meson-baryon Lagrangian
dc.type journal article es_ES
dc.date.updated 2014-10-22T10:56:06Z
dc.identifier.doi 10.1103/PhysRevD.74.034025
dc.identifier.idgrec 068578
dc.rights.accessRights open access es_ES

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