phi ->pi(+)pi(-) decay within a chiral unitary approach
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phi ->pi(+)pi(-) decay within a chiral unitary approach

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phi ->pi(+)pi(-) decay within a chiral unitary approach

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dc.contributor.author Oller Berber, José Antonio
dc.contributor.author Oset Báguena, Eulogio
dc.contributor.author Peláez Sagredo, José Ramón
dc.date.accessioned 2015-09-03T12:38:09Z
dc.date.available 2015-09-03T12:38:09Z
dc.date.issued 2000
dc.identifier.uri http://hdl.handle.net/10550/46821
dc.description.abstract Starting from the Chiral Perturbation Theory Lagrangian, but keeping different masses for the charged and neutral mesons, and using a previously developed non-perturbative unitary scheme that generates the lightest meson-meson resonances, we construct K Kbar to K Kbar and K Kbar to pi+ pi- in the vector channel. This allows us to obtain the kaon-loop contribution to the phi-rho mixing and study the phi to pi+pi- decay. The dominant contribution to this decay comes from the phi to gamma to pi+pi- process. However, there can be large interferences with the subdominant contributions coming from phi-rho and phi-omega mixing, or of these two contributions among themselves. As a consequence, a reliable measurement of phi to pi+pi- decay could be used to differentiate between some phi-omega mixing scenarios proposed in the literature.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2000, vol. 62, num. 11, p. 114017
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Oller Berber, José Antonio Oset Báguena, Eulogio Peláez Sagredo, José Ramón 2000 phi ->pi(+)pi(-) decay within a chiral unitary approach Physical Review D 62 11 114017
dc.subject Física
dc.title phi ->pi(+)pi(-) decay within a chiral unitary approach
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-09-03T12:38:09Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.62.114017
dc.identifier.idgrec 079394

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