Spontaneous CP Violation in E{sub 6} GUT with horizontal symmetry

Journal Article · Wed Feb 10 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3327764· OSTI ID:21371643

Maekawa, Nobuhiro ^[1]

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1. Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602 (Japan)

We consider spontaneous CP violation in E{sub 6} grand unified theory (GUT) with horizontal symmetry and anomalous U(1){sub A} gauge symmetry in order to solve the SUSY CP problem. To realize the sufficiently small phases of SUSY Higgs mass mu and mixing parameter B, an additional discrete symmetry is introduced. The discrete symmetry plays multiple roles in explaining various things. By the symmetry, the up-type Yukawa couplings become real, which is important in satisfying the Chromo-EDM constraints to the imaginary part of the off-diagonal elements of squark mass matrices, and the down-type Yukawa couplings become complex, which is important in obtaining the Kobayashi-Maskawa phase. Moreover, this symmetry improves the smallness of up quark mass, and reduces the number of O(1) coefficients. One of the interesting predictions is V{sub ub}approxgamma{sup 4}, which is quite good agreement with the measured value. This talk is based on the works in Ref. [1].

• OSTI ID: 21371643
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1200; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COUPLING
CP INVARIANCE
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GAUGE INVARIANCE
GRAND UNIFIED THEORY
HIGGS BOSONS
HIGGS MODEL
INVARIANCE PRINCIPLES
KOBAYASHI-MASKAWA MATRIX
LEPTONS
LIE GROUPS
MASS
MATHEMATICAL MODELS
MATRICES
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARKS
REST MASS
SPARTICLES
SUPERSYMMETRY
SYMMETRY
SYMMETRY GROUPS
U GROUPS
U QUARKS
U-1 GROUPS
UNIFIED GAUGE MODELS