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.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 |
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dc.relation.ispartof |
Physical Review C, 2004, vol. 70, num. 6, p. 065202-1-065202-8 |
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dc.rights.uri |
info:eu-repo/semantics/openAccess |
|
dc.source |
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 |
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dc.subject |
Física |
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dc.title |
Lambda(1405) and (Lambda)over-bar(1405) in J/psi four-body decays |
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dc.type |
info:eu-repo/semantics/article |
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dc.date.updated |
2015-09-08T09:19:54Z |
|
dc.identifier.doi |
http://dx.doi.org/10.1103/PhysRevC.70.065202 |
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dc.identifier.idgrec |
017666 |
|