CP asymmetry in B{yields}{phi}K{sub S} in a supersymmetric SO(10) grand unified theory

Journal Article · Wed Dec 01 04:00:00 EST 2004 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.70.116002· OSTI ID:20698170

Yuanben, Dai; Chaoshang, Huang ^[1]; Wenjun, Li ^[1]; Xiaohong, Wu ^[2]

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1. Institute of Theoretical Physics, Academia Sinica, P. O. Box 2735, Beijing 100080 (China)
2. Department of Physics, KAIST, Daejeon 305-701 (Korea, Republic of)

We study the B{yields}{phi}K{sub S} decay in a supersymmetric (SUSY) SO(10) grand unified theory (GUT). We calculate the mass spectrum of sparticles for a given set of parameters at the grand unified theory (GUT) scale. We complete the calculations of the Wilson coefficients of operators including the new operators which are induced by neutral Higgs boson (NHB) penguins at LO using the mass insertion approximation (MIA) with double insertions. It is shown that the recent experimental results on the time-dependent CP asymmetry S{sub {phi}}{sub K} in B{yields}{phi}K{sub S}, which is negative and cannot be explained in the standard model (SM), can be explained in the model where there are flavor nondiagonal right-handed down squark mass matrix elements of second and third generations whose size satisfies all relevant constraints from known experiments ({tau}{yields}{mu}{gamma}, B{yields}X{sub S}{gamma}, B{sub s}{yields}{mu}{sup +}{mu}{sup -}, B{yields}X{sub s}{mu}{sup +}{mu}{sup -}, B{yields}X{sub s}g, {delta}M{sub s}, etc.). At the same time, the branching ratio for the decay can also be in agreement with experimental measurements.

• OSTI ID: 20698170
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 70; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
BRANCHING RATIO
CP INVARIANCE
FLAVOR MODEL
HADRONIC PARTICLE DECAY
HIGGS BOSONS
KAONS NEUTRAL SHORT-LIVED
MASS FORMULAE
MASS SPECTRA
MATRIX ELEMENTS
MUONS MINUS
MUONS PLUS
PARTICLE PRODUCTION
PHI-1020 MESONS
QUARKS
REST MASS
SO-10 GROUPS
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY
TIME DEPENDENCE