skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: SO(10) SUSY GUT for fermion masses: Lepton flavor and CP violation

Abstract

We discuss the results of a global {chi}{sup 2} analysis of a simple SO(10) supersymmetric grand unified theory (SUSY GUT) with D{sub 3} family symmetry and low energy R parity. The model describes fermion mass matrices with 14 parameters and gives excellent fits to 20 observable masses and mixing angles in both quark and lepton sectors, giving six predictions. Bi-large neutrino mixing is obtained with hierarchical quark and lepton Yukawa matrices, thus avoiding the possibility of large lepton flavor violation. The model naturally predicts small 1-3 neutrino mixing, with sin{theta}{sub 13}{approx_equal}0.05-0.06. In this paper we evaluate the predictions for the lepton flavor violating processes, {mu}{yields}e{gamma}, {tau}{yields}{mu}{gamma} and {tau}{yields}e{gamma} and also the electric dipole moment of the electron (d{sub e}), the muon, and the tau, assuming universal squark and slepton masses (m{sub 16}) and a universal soft SUSY breaking A parameter (A{sub 0}) at the GUT scale. We find Br({mu}{yields}e{gamma}) is naturally below present bounds, but may be observable by MEG. Similarly, d{sub e} is below present bounds, but it is within the range of future experiments. We also give predictions for the light Higgs mass (using FeynHiggs). We find an upper bound given by m{sub h}{<=}127 GeV, with an estimatedmore » {+-}3 GeV theoretical uncertainty. Finally we present predictions for SUSY particle masses in the favored region of parameter space.« less

Authors:
 [1]; ;  [2]
  1. School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States)
  2. Department of Physics, Ohio State University, 191 W. Woodruff Avenue, Columbus, Ohio 43210 (United States)
Publication Date:
OSTI Identifier:
20870913
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 74; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.74.035011; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CP INVARIANCE; ELECTRIC DIPOLE MOMENTS; ELECTRONS; FLAVOR MODEL; GEV RANGE; GRAND UNIFIED THEORY; HIGGS BOSONS; HIGGS MODEL; MATRICES; MUONS; NEUTRINOS; PARITY; QUARKS; REST MASS; SO-10 GROUPS; SPARTICLES; SUPERSYMMETRY; WEINBERG ANGLE

Citation Formats

Dermisek, R, Harada, M, and Raby, S. SO(10) SUSY GUT for fermion masses: Lepton flavor and CP violation. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.74.035011.
Dermisek, R, Harada, M, & Raby, S. SO(10) SUSY GUT for fermion masses: Lepton flavor and CP violation. United States. https://doi.org/10.1103/PHYSREVD.74.035011
Dermisek, R, Harada, M, and Raby, S. Tue . "SO(10) SUSY GUT for fermion masses: Lepton flavor and CP violation". United States. https://doi.org/10.1103/PHYSREVD.74.035011.
@article{osti_20870913,
title = {SO(10) SUSY GUT for fermion masses: Lepton flavor and CP violation},
author = {Dermisek, R and Harada, M and Raby, S},
abstractNote = {We discuss the results of a global {chi}{sup 2} analysis of a simple SO(10) supersymmetric grand unified theory (SUSY GUT) with D{sub 3} family symmetry and low energy R parity. The model describes fermion mass matrices with 14 parameters and gives excellent fits to 20 observable masses and mixing angles in both quark and lepton sectors, giving six predictions. Bi-large neutrino mixing is obtained with hierarchical quark and lepton Yukawa matrices, thus avoiding the possibility of large lepton flavor violation. The model naturally predicts small 1-3 neutrino mixing, with sin{theta}{sub 13}{approx_equal}0.05-0.06. In this paper we evaluate the predictions for the lepton flavor violating processes, {mu}{yields}e{gamma}, {tau}{yields}{mu}{gamma} and {tau}{yields}e{gamma} and also the electric dipole moment of the electron (d{sub e}), the muon, and the tau, assuming universal squark and slepton masses (m{sub 16}) and a universal soft SUSY breaking A parameter (A{sub 0}) at the GUT scale. We find Br({mu}{yields}e{gamma}) is naturally below present bounds, but may be observable by MEG. Similarly, d{sub e} is below present bounds, but it is within the range of future experiments. We also give predictions for the light Higgs mass (using FeynHiggs). We find an upper bound given by m{sub h}{<=}127 GeV, with an estimated {+-}3 GeV theoretical uncertainty. Finally we present predictions for SUSY particle masses in the favored region of parameter space.},
doi = {10.1103/PHYSREVD.74.035011},
url = {https://www.osti.gov/biblio/20870913}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 3,
volume = 74,
place = {United States},
year = {2006},
month = {8}
}