CP violating lepton asymmetry from B decays in supersymmetric grand unified theories

Journal Article · Wed Sep 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.055017· OSTI ID:21421068

Dutta, Bhaskar ^[1]; Mimura, Yukihiro ^[2]; Santoso, Yudi ^[3]

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1. Department of Physics, Texas A and M University, College Station, Texas 77843-4242 (United States)
2. Department of Physics, National Taiwan University, Taipei, Taiwan 10617 (China)
3. Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045-7582 (United States)

We investigate the effect of the dimuon CP asymmetry from the B decay modes, recently observed at 3.2{sigma} deviation from the standard model (SM) by the D0 Collaboration, in the context of SU(5) and SO(10) grand unified theory models. We exhibit that a large amount of flavor violation between the second and the third generation is generated due to the large neutrino atmospheric mixing angle and this flavor violation can be responsible for the large CP asymmetry, i.e., a{sub sl}{sup s}=(-12.7{+-}5.0)x10{sup -3} (assuming 2{sigma} error in the prediction of the standard model value of {Gamma}{sub 12}{sup s}/M{sub 12}{sup s} and error in the lattice measurements of B{sub B{sub s}}f{sub B{sub s}}{sup 2}) due to the presence of new phases which are not present in the Cabibbo-Kobayashi-Maskawa matrix in the Yukawa couplings. We also study the implication of the parameter space in these grand unified theory models with large CP violating lepton asymmetry for different phenomenologies, e.g., Br({tau}{yields}{mu}{gamma}), Br(B{sub s}{yields}{mu}{mu}) at the Fermilab, direct detection of dark matter in the ongoing detectors, and measurement of muon flux from solar neutrinos at the IceCube experiment.

• OSTI ID: 21421068
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevD.82.055017; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
COUPLING
CP INVARIANCE
DETECTION
FERMILAB
FLAVOR MODEL
FORECASTING
GRAND UNIFIED THEORY
KOBAYASHI-MASKAWA MATRIX
MUONS
NONLUMINOUS MATTER
PARTICLE DECAY
SO-10 GROUPS
SOLAR NEUTRINOS
STANDARD MODEL
SU-5 GROUPS
SUPERSYMMETRY
WEINBERG ANGLE
YUKAWA POTENTIAL
COMPOSITE MODELS
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
INVARIANCE PRINCIPLES
LEPTONS
LIE GROUPS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATRICES
MATTER
NATIONAL ORGANIZATIONS
NEUTRINOS
NUCLEAR POTENTIAL
PARTICLE MODELS
POTENTIALS
QUANTUM FIELD THEORY
QUARK MODEL
RADIATIONS
SO GROUPS
SOLAR PARTICLES
SOLAR RADIATION
STELLAR RADIATION
SU GROUPS
SYMMETRY
SYMMETRY GROUPS
UNIFIED GAUGE MODELS
US DOE
US ORGANIZATIONS