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Single photon decays of the Z0 and SUSY with spontaneously broken R-parity

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Single photon decays of the Z0 and SUSY with spontaneously broken R-parity

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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

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