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dc.contributor.author | Li, Chiang-bing | |
dc.contributor.author | Oset Báguena, Eulogio | |
dc.date.accessioned | 2015-09-08T09:19:54Z | |
dc.date.available | 2015-09-08T09:19:54Z | |
dc.date.issued | 2004 | |
dc.identifier.citation | Li, Chiang-bing Oset Báguena, Eulogio 2004 Lambda(1405) and (Lambda)over-bar(1405) in J/psi four-body decays Physical Review C 70 6 065202-1 065202-8 | |
dc.identifier.uri | http://hdl.handle.net/10550/46948 | |
dc.description.abstract | We study the structure of the baryon resonances Λ(1405) and Λ¯(1405) in J/ψ four body decays J/ψ→ΣΣ¯ππ in the framework of a coupled channel chiral unitary approach. With still sufficient freedom for model parameters, the Λ(1405) and Λ¯(1405) resonances are generated by simultaneously taking the meson baryon and meson anti-baryon final state interactions into account. The πΣ (πΣ¯) invariant mass distributions peak around 1410 MeV, which favors the assertion that the Λ(1405) (Λ¯(1405)) is a superposition of the two Λ(1405) (Λ¯(1405)) states which dominantly couple to K¯N (KN¯) and πΣ (πΣ¯), respectively. We also calculate the amplitude for isospin I=1 which gives hints on a possible I=1 baryon resonance in the energy region of the Λ(1405), which up to now has not been observed. | |
dc.language.iso | eng | |
dc.relation.ispartof | Physical Review C, 2004, vol. 70, num. 6, p. 065202-1-065202-8 | |
dc.subject | Física | |
dc.title | Lambda(1405) and (Lambda)over-bar(1405) in J/psi four-body decays | |
dc.type | journal article | es_ES |
dc.date.updated | 2015-09-08T09:19:54Z | |
dc.identifier.doi | 10.1103/PhysRevC.70.065202 | |
dc.identifier.idgrec | 017666 | |
dc.rights.accessRights | open access | es_ES |