Neutrino mass effects in a minimally extended supersymmetric standard model

Rouzbeh Allahverdi, Bruce A. Campbell, Keith A. Olive

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We consider an extension of the supersymmetric standard model which includes singlet Higgs superfield representations (in three generations) to generate neutrino masses via the see-saw mechanism. The resulting theory may then exhibit R-parity violation in the couplings of the singlets, inducing R-parity violating effective interactions among the standard model superfields, as well as inducing decay of the lightest neutralino, which otherwise would compose a stable LSP. We compute the rates for the resulting neutralino decays, depending on the particular superpotential couplings responsible for the violation of R-parity. We compare to astrophysical constraints on the decay of massive particles.

Original languageEnglish (US)
Pages (from-to)166-172
Number of pages7
JournalPhysics Letters B
Issue number2
StatePublished - Dec 29 1994

Bibliographical note

Funding Information:
We wish to thank both the referee, and the editor H. Georgi, for insightful criticism of an earlier version of this paper. This work was supported in part by the Natural Sciences and Engineering Research Council of Canada and by DOE grant DE-FGO2-94ER40823. The work of KAO was in addition supported by a Presidential Young Investigator Award, and RA wishes to thank the Iranian Ministry of Culture and Higher Education for continuing support.


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