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Majoron emission in muon and tau decays revisited

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Majoron emission in muon and tau decays revisited

dc.contributor.author	Hirsch, Martin
dc.contributor.author	Vicente Montesinos, Avelino
dc.contributor.author	Meyer, Jochen
dc.contributor.author	Porod, Werner
dc.date.accessioned	2014-08-25T10:49:01Z
dc.date.available	2014-08-25T10:49:01Z
dc.date.issued	2009
dc.identifier.uri	http://hdl.handle.net/10550/37388
dc.description.abstract	In models where the breaking of lepton number is spontaneous a massless Goldstone boson, the Majoron (J), appears. We calculate the theoretically allowed range for the branching ratios of Majoron-emitting charged lepton decays, such as Br(mu -> eJ) and Br(mu -> eJ gamma), in a supersymmetric model with spontaneous breaking of R-parity. Br(mu -> eJ) is maximal in the same region of parameter space for which the lightest neutralino decays mainly invisibly. A measurement of Br(mu -> eJ) thus potentially provides information on R-parity violation complementary to accelerator searches. We also briefly discuss existing bounds and prospects for future improvements on the Majoron coupling to charged leptons.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2009, vol. 79, num. 5, p. 055023
dc.rights.uri	info:eu-repo/semantics/openAccess
dc.source	Hirsch, Martin Vicente Montesinos, Avelino Meyer, J. Porod, Werner 2009 Majoron emission in muon and tau decays revisited Physical Review D 79 5 055023
dc.subject	Física
dc.title	Majoron emission in muon and tau decays revisited
dc.type	info:eu-repo/semantics/article
dc.date.updated	2014-08-25T10:49:02Z
dc.identifier.doi	http://dx.doi.org/10.1103/PhysRevD.79.055023
dc.identifier.idgrec	084489