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dc.contributor.author | Romao, J. C. | |
dc.contributor.author | Rosiek, Janusz | |
dc.contributor.author | Furtado Valle, José Wagner | |
dc.date.accessioned | 2015-09-25T10:52:06Z | |
dc.date.available | 2015-09-25T10:52:06Z | |
dc.date.issued | 1995 | |
dc.identifier.citation | Romao, J. C. Rosiek, Janusz Furtado Valle, José Wagner 1995 Single photon decays of the Z0 and SUSY with spontaneously broken R-parity Physics Letters B 351 4 497 503 | |
dc.identifier.uri | http://hdl.handle.net/10550/47235 | |
dc.description.abstract | Spontaneous violation of R parity can induce rare single photon decays of the Z0 involving the emission of (nearly) massless pseudoscalar Goldstone bosons, majorons, as well as massive CP even or CP odd spin zero bosons that arise in the electroweak breaking sector of these models. We show that the majoron emitting decays can have a sizeable branching ratio of 10−5 or so, without conflicting any experimental observation from neutrino physics or particle searches. These decays may lead to interesting structures for the single photon spectrum involving either mono chromatic photons as well as continuous spectra that grow with energy. They would easily account for an excess of single photon events at high energies recently hinted at by the OPAL collaboration. | |
dc.language.iso | eng | |
dc.relation.ispartof | Physics Letters B, 1995, vol. 351, num. 4, p. 497-503 | |
dc.subject | Física | |
dc.title | Single photon decays of the Z0 and SUSY with spontaneously broken R-parity | |
dc.type | journal article | es_ES |
dc.date.updated | 2015-09-25T10:52:06Z | |
dc.identifier.doi | 10.1016/0370-2693(95)00432-K | |
dc.identifier.idgrec | 073564 | |
dc.rights.accessRights | open access | es_ES |