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

Abstract

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.

Authors:
 [1];  [2];  [3]
  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)
Publication Date:
OSTI Identifier:
21541577
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 83; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.83.093004; (c) 2011 American Institute of Physics; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COUPLING; DEGREES OF FREEDOM; FLAVOR MODEL; FORECASTING; GAUGE INVARIANCE; GRAND UNIFIED THEORY; LIFETIME; MASS; NONLUMINOUS MATTER; PARITY; PARTICLE DECAY; SO-10 GROUPS; SO-3 GROUPS; STANDARD MODEL; SU-2 GROUPS; SU-3 GROUPS; SUPERSYMMETRY; U-1 GROUPS; COMPOSITE MODELS; DECAY; FIELD THEORIES; INVARIANCE PRINCIPLES; LIE GROUPS; MATHEMATICAL MODELS; MATTER; PARTICLE MODELS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUARK MODEL; SO GROUPS; SU GROUPS; SYMMETRY; SYMMETRY GROUPS; U GROUPS; UNIFIED GAUGE MODELS

Citation Formats

Parida, Mina K, Sahu, Pradip K, and Bora, Kalpana. Flavor unification, dark matter, proton decay, and other observable predictions with low-scale S{sub 4} symmetry. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.83.093004.
Parida, Mina K, Sahu, Pradip K, & Bora, Kalpana. Flavor unification, dark matter, proton decay, and other observable predictions with low-scale S{sub 4} symmetry. United States. https://doi.org/10.1103/PHYSREVD.83.093004
Parida, Mina K, Sahu, Pradip K, and Bora, Kalpana. Sun . "Flavor unification, dark matter, proton decay, and other observable predictions with low-scale S{sub 4} symmetry". United States. https://doi.org/10.1103/PHYSREVD.83.093004.
@article{osti_21541577,
title = {Flavor unification, dark matter, proton decay, and other observable predictions with low-scale S{sub 4} symmetry},
author = {Parida, Mina K and Sahu, Pradip K and Bora, Kalpana},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.83.093004},
url = {https://www.osti.gov/biblio/21541577}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 9,
volume = 83,
place = {United States},
year = {2011},
month = {5}
}