Flavor unification, dark matter, proton decay, and other observable predictions with low-scale S{sub 4} symmetry

Journal Article · Sun May 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.093004· OSTI ID:21541577

Parida, Mina K ^[1]; Sahu, Pradip K ^[2]; Bora, Kalpana ^[3]

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1. Harish-Chandra Research Institute, Chhatnag Road, Jhusi, Allahabad 211019 (India)
2. Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005 (India)
3. Department of Physics, Gauhati University, Guwahati 781014 (India)

We show how gauge coupling unification is successfully implemented through nonsupersymmetric grand unified theory, SO(10)xG{sub f}(G{sub f}=S{sub 4},SO(3){sub f},SU(3){sub f}), using a low-scale flavor-symmetric model of the type SU(2){sub L}xU(1){sub Y}xSU(3){sub C}xS{sub 4} recently proposed by Hagedorn, Lindner, and Mohapatra, while assigning matter-parity discrete symmetry for the dark matter stability. For gauge coupling unification in the single-step-breaking case, we show that a color-octet fermion and a hyperchargeless weak triplet fermionic dark matter are the missing particles needed to complete its minimal supersymmetric standard model-equivalent degrees of freedom. When these are included, the model automatically predicts the nonsupersymmetric grand unification with a scale identical to the minimal supersymmetric standard model/grand unified theory scale. We also find a two-step-breaking model with Pati-Salam intermediate symmetry where the dark matter and a low-mass color-octet scalar or the fermion are signaled by grand unification. The proton-lifetime predictions are found to be accessible to ongoing or planned searches in a number of models. We discuss the grand unified origin of the light fermionic triplet dark matter, the color-octet fermion, and their phenomenology.

• OSTI ID: 21541577
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPOSITE MODELS
COUPLING
DECAY
DEGREES OF FREEDOM
FIELD THEORIES
FLAVOR MODEL
FORECASTING
GAUGE INVARIANCE
GRAND UNIFIED THEORY
INVARIANCE PRINCIPLES
LIE GROUPS
LIFETIME
MASS
MATHEMATICAL MODELS
MATTER
NONLUMINOUS MATTER
PARITY
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
QUARK MODEL
SO GROUPS
SO-10 GROUPS
SO-3 GROUPS
STANDARD MODEL
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SUPERSYMMETRY
SYMMETRY
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS