Type-II seesaw dominance in nonsupersymmetric and split-supersymmetry SO(10) models and proton lifetime

Journal Article · Tue Nov 01 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.095021· OSTI ID:21608062

Mohapatra, R N; Parida, Mina K ^[1]

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

Recently type-II seesaw in a supersymmetricSO(10) framework has been found useful in explaining large solar and atmospheric mixing angles as well as a larger value of {theta}{sub 13} while unifying quark and lepton masses. An important question in these models is whether there exists consistency between coupling unification and type-II seesaw dominance. Scenarios where this consistency can be demonstrated have been given in a SUSY framework. In this paper we give examples where type-II dominance occurs in SO(10) models without supersymmetry but with additional TeV-scale particles and also in models with split-supersymmetry. Grand unification is realized in a two step process via breaking of SO(10) to SU(5) and then to a TeV-scale standard model supplemented by extra fields and an SU(5) Higgs multiplet 15{sub H} at a scale of about 10{sup 12} GeV to give a type-II seesaw. The predictions for proton lifetime in these models are in the range {tau}{sub p}{sup 0}=2x10{sup 35} yrs. to 6x10{sup 35} yrs. A number of recent numerical fits to GUT-scale fermion masses can be accommodated within this model.

• OSTI ID: 21608062
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 84; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
COUPLING
EEV RANGE
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
HADRONS
HIGGS BOSONS
HIGGS MODEL
LEPTONS
LIE GROUPS
LIFETIME
MASS
MATHEMATICAL MODELS
NUCLEONS
PARTICLE MODELS
POSTULATED PARTICLES
PROTONS
QUANTUM FIELD THEORY
QUARKS
SO GROUPS
SO-10 GROUPS
STANDARD MODEL
SU GROUPS
SU-5 GROUPS
SUPERSYMMETRY
SYMMETRY
SYMMETRY GROUPS
TEV RANGE
UNIFIED GAUGE MODELS
WEINBERG ANGLE