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K 0 --> pi 0 gammagamma decays in chiral perturbation theory

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dc.contributor.author	Ecker, Gerhard
dc.contributor.author	Pich Zardoya, Antonio
dc.contributor.author	Rafael, Eduardo de
dc.date.accessioned	2014-11-11T08:21:14Z
dc.date.available	2014-11-11T08:21:14Z
dc.date.issued	1987
dc.identifier.citation	Ecker, Gerhard Pich Zardoya, Antonio Rafael, Eduardo de 1987 K 0 --> pi 0 gammagamma decays in chiral perturbation theory Physics Letters B 189 3 363 368
dc.identifier.uri	http://hdl.handle.net/10550/39691
dc.description.abstract	The decays K L,S --> pi 0gammagamma are calculated within the framework of chiral perturbation theory. The amplitude for K L --> pi 0gammagamma is found to be finite at the one-loop level yielding a branching ratio of 6.8 × 10 -7. The decay spectra of both decays are very characteristic and provide good tests of the effective chiral symmetry realization of the standard model.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 1987, vol. 189, num. 3, p. 363-368
dc.subject	Física
dc.title	K 0 --> pi 0 gammagamma decays in chiral perturbation theory
dc.type	journal article	es_ES
dc.date.updated	2014-11-11T08:21:15Z
dc.identifier.doi	10.1016/0370-2693(87)91448-1
dc.identifier.idgrec	081640
dc.rights.accessRights	open access	es_ES