CP asymmetry in B{sup 0}{yields}K{sup -}{pi}{sup +} from supersymmetric flavor changing interactions

Journal Article · Tue Mar 01 00:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.054006· OSTI ID:20706096

Xiaogang, He; Chongsheng, Li; Lilin, Yang ^[1]

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1. Department of Physics, Peking University, Beijing (China) and NCTS/TPE, Department of Physics, National Taiwan University, Taipei (China)

Recently BABAR and Belle Collaborations have measured direct CP asymmetry A{sub CP}=-0.114{+-}0.020 in B{sup 0}{yields}K{sup -}{pi}{sup +}. The experimental value is substantially different from the QCD factorization prediction. We show that supersymmetry flavor changing neutral current interaction via gluonic dipole can explain the difference. CP asymmetries in other B{yields}K{pi} decays are predicted to be sizable. Taking this asymmetry as a constraint, we find that the allowed supersymmetry parameter space is considerably reduced compared with constraint from B{yields}X{sub s}{gamma} alone. We also find the allowed time-dependent CP asymmetries S{sub f} in B{sup 0}{yields}K*{sup 0}{gamma}{yields}{pi}{sup 0}K{sub S}{gamma} and B{sup 0}{yields}{phi}K{sub S} to be large. These predictions are quite different than those predicted in the standard model and can be tested in the near future.

• OSTI ID: 20706096
• Journal Information: Physical Review. D, Particles Fields, Vol. 71, Issue 5; Other Information: DOI: 10.1103/PhysRevD.71.054006; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
CP INVARIANCE
DIPOLES
FACTORIZATION
FLAVOR MODEL
HADRONIC PARTICLE DECAY
K*-892 MESONS
KAONS MINUS
KAONS NEUTRAL SHORT-LIVED
NEUTRAL CURRENTS
NEUTRAL-CURRENT INTERACTIONS
PHOTON-MESON INTERACTIONS
PIONS PLUS
QUANTUM CHROMODYNAMICS
STANDARD MODEL
SUPERSYMMETRY
TIME DEPENDENCE