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Radiative decay of rho(0) and phi mesons in a chiral unitary approach

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Radiative decay of rho(0) and phi mesons in a chiral unitary approach

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dc.contributor.author Marco Rubio, Eugenio
dc.contributor.author Hirenzaki, Satoru
dc.contributor.author Oset Báguena, Eulogio
dc.contributor.author Toki, Hiroshi
dc.date.accessioned 2015-09-04T10:04:55Z
dc.date.available 2015-09-04T10:04:55Z
dc.date.issued 1999
dc.identifier.citation Marco Rubio, Eugenio Hirenzaki, Satoru Oset Báguena, Eulogio Toki, Hiroshi 1999 Radiative decay of rho(0) and phi mesons in a chiral unitary approach Physics Letters B 470 1-4 20 26
dc.identifier.uri http://hdl.handle.net/10550/46845
dc.description.abstract We study the rho^0 and phi decays into pi^+ pi^- gamma, pi^0 pi^0 gamma and phi into pi^0 eta gamma using a chiral unitary approach to deal with the final state interaction of the M M system. The final state interaction modifies only moderately the large momenta tail of the photon spectrum of the rho^0 --> pi^+ pi^- gamma decay. In the case of phi decay the contribution to pi^+ pi^- gamma and pi^0 pi^0 gamma decay proceeds via kaonic loops and gives a distribution of pi pi invariant masses in which the f_0(980) resonance shows up with a very distinct peak. The spectrum found for phi --> pi^0 pi^0 gamma decay agrees with the recent experimental results obtained at Novosibirsk. The branching ratio for phi --> pi^0 eta gamma, dominated by the a_0(980), is also in agreement with recent Novosibirsk results.
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 1999, vol. 470, num. 1-4, p. 20-26
dc.subject Física
dc.title Radiative decay of rho(0) and phi mesons in a chiral unitary approach
dc.type journal article es_ES
dc.date.updated 2015-09-04T10:04:55Z
dc.identifier.doi 10.1016/S0370-2693(99)01205-8
dc.identifier.idgrec 079416
dc.rights.accessRights open access es_ES

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