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Non-perturbative chiral approach to K(-)p ->gamma Y reactions

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Non-perturbative chiral approach to K(-)p ->gamma Y reactions

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dc.contributor.author Lee, Tsung-Shung Harry
dc.contributor.author Oller Berber, José Antonio
dc.contributor.author Oset Báguena, Eulogio
dc.contributor.author Ramos Gómez, Àngels
dc.date.accessioned 2015-09-04T10:20:53Z
dc.date.available 2015-09-04T10:20:53Z
dc.date.issued 1998
dc.identifier.citation Lee, Tsung-Shung Harry Oller Berber, José Antonio Oset Báguena, Eulogio Ramos Gómez, Àngels 1998 Non-perturbative chiral approach to K(-)p ->gamma Y reactions Nuclear Physics A 643 4 402 414
dc.identifier.uri http://hdl.handle.net/10550/46852
dc.description.abstract A recently developed nonperturbative chiral approach to describe the S=-1 meson-baryon reactions has been extended to investigate the near threshold K−p→γΛ,γΣ0 reactions. With the parameters governed by chiral SU(3) symmetry, we show that the predicted branching ratios ΓK−p→γΛ/ΓK−p→all and ΓK−p→γΣ0/ΓK−p→all are close to the experimental values. The coupling with the η channels, which was shown to be important in the S=−1 meson-baryon reactions, is also found to be significant here. Our results are consistent with the interpretation of the Λ(1405) as a quasi-bound meson-baryon state as found in other similar chiral approaches.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics A, 1998, vol. 643, num. 4, p. 402-414
dc.subject Física
dc.title Non-perturbative chiral approach to K(-)p ->gamma Y reactions
dc.type journal article es_ES
dc.date.updated 2015-09-04T10:20:53Z
dc.identifier.doi 10.1016/S0375-9474(98)00581-8
dc.identifier.idgrec 079428
dc.rights.accessRights open access es_ES

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