Supersymmetry breaking by type II seesaw assisted anomaly mediation

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

DOI:https://doi.org/10.1103/PHYSREVD.77.115017· OSTI ID:21205114

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

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1. Department of Physics, University of Maryland, College Park, MD 20742 (United States)

Anomaly mediated supersymmetry breaking, when implemented in the minimal supersymmetric standard model, is known to suffer from the problem of negative slepton mass squared leading to the breakdown of electric charge conservation. We show, however, that when the minimal supersymmetric standard model is extended to explain small neutrino masses by including a pair of superheavy Higgs triplet superfields (the type II seesaw mechanism), the slepton masses can be deflected from the pure anomaly mediated supersymmetry breaking trajectory and become positive. In the simple model we present in this paper, the seesaw scale is about 10{sup 13}-10{sup 14} GeV. Gauge coupling unification can be maintained by embedding the triplet to SU(5) 15-multiplet. In this scenario, the b-ino is the lightest supersymmetric particle and its mass is nearly degenerate with the next-to-lightest supersymmetric particle slepton when the triplet mass is right around the seesaw scale.

• OSTI ID: 21205114
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BREAKDOWN
COUPLING
ELECTRIC CHARGES
ENERGY RANGE
HIGGS BOSONS
HIGGS MODEL
MASS
NEUTRINOS
SPARTICLES
STANDARD MODEL
SU-5 GROUPS
SUPERSYMMETRY
SYMMETRY BREAKING
TRAJECTORIES
TRIPLETS