Spontaneous R-parity violation: Lightest neutralino decays and neutrino mixing angles at future colliders

Journal Article · Tue Apr 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.075005· OSTI ID:21249961

Hirsch, M; Vicente, A; Porod, W ^[1]

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1. AHEP Group, Institut de Fisica Corpuscular--C.S.I.C. and Universitat de Valencia, Edificio Institutos de Paterna, Apt 22085, E-46071 Valencia (Spain)

We study the decays of the lightest supersymmetric particle (LSP) in models with spontaneously broken R-parity. We focus on the two cases that the LSP is either a bino or a neutral singlet lepton. We work out the most important phenomenological differences between these two scenarios and discuss also how they might be distinguished from explicit R-parity breaking models. In both cases we find that certain ratios of decay branching ratios are correlated with either the solar or the atmospheric (and reactor) neutrino angle. The hypothesis that spontaneous R-parity violation is the source of the observed neutrino masses is therefore potentially testable at the LHC.

• OSTI ID: 21249961
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CERN LHC
HYPOTHESIS
LEPTONS
MASS
NEUTRINOS
PARITY
PARTICLE DECAY
SIMULATION
SOLAR NEUTRINOS
SPARTICLES
SYMMETRY BREAKING
WEINBERG ANGLE