Spontaneous R-parity breaking in supersymmetric models
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)
We investigate a mechanism for spontaneous R-parity breaking in a class of extensions of the minimal supersymmetric standard model with an extra Abelian gauge symmetry which is a linear combination of B-L and weak hypercharge. Both U(1){sub X} and R-parity are broken by the vacuum expectation value of the right-handed sneutrinos, which is proportional to the soft supersymmetric masses. In these models the mechanism for spontaneous R-parity violation can be realized even with positive soft masses. In this context one has a realistic mechanism for generating neutrino masses as well as a realistic spectrum. We briefly discuss the possible collider signals which could be used to test the theory, the contributions to proton decay, and the possibility of a gravitino as a dark matter candidate.
- OSTI ID:
- 21308541
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 80; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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