{nu}-gauge mediated supersymmetry breaking with type III seesaw mechanism and phenomenology

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

DOI:https://doi.org/10.1103/PHYSREVD.78.075011· OSTI ID:21254324

Mohapatra, R N; Okada, Nobuchika; Haibo, Yu ^[1]

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1. Maryland Center for Fundamental Physics and Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)

We show that when the supersymmetric SU(5) model is extended to explain small neutrino masses by the type III seesaw mechanism, the new 24-dimensional fields needed for the purpose can act as messengers for transmitting SUSY breaking from a hidden sector to the visible sector. For the three 24s case, the constraints of grand unification and suppressed lepton flavor violation restrict the seesaw scale in this case to be in the narrow range of 10{sup 12}-10{sup 13} GeV. The model predicts (i) a stable lightest superpartner gravitino with mass in the range of 1-10 MeV which can be a cold dark matter of the universe; (ii) a stau next to lightest superpartner, which is detectable at the LHC; (iii) a lower bound on the branching ratio BR({mu}{yields}e{gamma}) larger than 10{sup -14} testable by the ongoing Muegamma (MEG) experiment as well as a characteristic particle spectrum different from other SUSY breaking scenarios. We also discuss the case with two 24 fields, which is the minimal case that can explain neutrino oscillation data.

• OSTI ID: 21254324
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 78; 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
EEV RANGE
FLAVOR MODEL
GRAND UNIFIED THEORY
GRAVITATION
MASS
MEV RANGE 01-10
NEUTRINO OSCILLATION
NEUTRINOS
NONLUMINOUS MATTER
PARTICLES
SPECTRA
SUPERSYMMETRY
SYMMETRY BREAKING
UNIVERSE
VIOLATIONS