Supersymmetry with spontaneous R-parity breaking in Z0 decays: the case of an additional Z
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Supersymmetry with spontaneous R-parity breaking in Z0 decays: the case of an additional Z

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Supersymmetry with spontaneous R-parity breaking in Z0 decays: the case of an additional Z

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dc.contributor.author González García, Mª Concepción
dc.contributor.author Furtado Valle, José Wagner
dc.date.accessioned 2015-09-24T11:49:02Z
dc.date.available 2015-09-24T11:49:02Z
dc.date.issued 1991
dc.identifier.uri http://hdl.handle.net/10550/47218
dc.description.abstract Single production of SUSY particles in the decays of the Z0 may proceed with large rates in models with spontaneously broken R-parity. We focus on the case where there is a lepton number symmetry as part of the gauge group. In the simplest of such models there is a single additional neutral gauge boson and the strength of Rp-violating interactions is related with that of the new gauge force. We study the phenomenological implications of the model for Z0 decays, including the study of the rates for single chargino production in Z0 decays, i.e. Z0→ξ±τ±, as well as for the so-called Zen events, and find that they may be measurable at LEP. The first process, characteristics of spontaneously broken R-parity models, may proceed with a branching ratio as large as few × 10−5 and should lead to a very clear signature. Zen events have a different origin than in the minimal SUSY standard model (MSSM). Their rates may also be enhanced with respect to MSSM. Our estimates of these rates take into account all of the relevant observational constraints, such as those that follow from neutrinophyics, from precise Z0 property measurements, as well as SUSY particle searches at LEP.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics B, 1991, vol. 355, num. 2, p. 330-350
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source González García, Mª Concepción Furtado Valle, José Wagner 1991 Supersymmetry with spontaneous R-parity breaking in Z0 decays: the case of an additional Z Nuclear Physics B 355 2 330 350
dc.subject Física
dc.title Supersymmetry with spontaneous R-parity breaking in Z0 decays: the case of an additional Z
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-09-24T11:49:02Z
dc.identifier.doi http://dx.doi.org/10.1016/0550-3213(91)90117-G
dc.identifier.idgrec 073595

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