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Non-leptonic kaon decays and the chiral anomaly

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dc.contributor.author	Ecker, Gerhard
dc.contributor.author	Neufeld, Helmut
dc.contributor.author	Pich Zardoya, Antonio
dc.date.accessioned	2015-02-25T12:29:27Z
dc.date.available	2015-02-25T12:29:27Z
dc.date.issued	1994
dc.identifier.citation	Ecker, Gerhard Neufeld, Helmut Pich Zardoya, Antonio 1994 Non-leptonic kaon decays and the chiral anomaly Nuclear Physics B 413 1-2 321 352
dc.identifier.uri	http://hdl.handle.net/10550/42285
dc.description.abstract	An investigation is performed of all non-leptonic kaon decays sensitive to the chiral anomaly. Within the framework of chiral perturbation theory, there are two classes of anomalous amplitudes at O(p4): reducible and direct contributions. Only radiative transitions are affected by the anomaly. The phenomenology of the decays K(L) --> pi+pi-gamma and K+ --> pi+pi0gamma is studied in detail. Including the dominant contributions of O(p6), the experimentally observed dependence of the direct emission amplitude for K(L) --> pi+pi-gamma on the photon energy can be understood. A survey is made of the rare ''anomalous'' decays K --> pipigammagamma and K --> 3pigamma(gamma), including some numerical estimates.
dc.language.iso	eng
dc.relation.ispartof	Nuclear Physics B, 1994, vol. 413, num. 1-2, p. 321-352
dc.subject	Física
dc.title	Non-leptonic kaon decays and the chiral anomaly
dc.type	journal article	es_ES
dc.date.updated	2015-02-25T12:29:28Z
dc.identifier.doi	10.1016/0550-3213(94)90623-8
dc.identifier.idgrec	081665
dc.rights.accessRights	open access	es_ES