B decays in an asymmetric left-right model
- Department of Physics, Concordia University, 7141 Sherbrooke Street West, Montreal, Quebec, Canada H4B 1R6 (Canada)
- Ottawa-Carleton Institute of Physics, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6 (Canada)
Motivated by recently observed disagreements with the standard model predictions in B decays, we study b{yields}d, s transitions in an asymmetric class of SU(2){sub L}xSU(2){sub R}xU(1){sub B-L} models, with a simple one-parameter structure of the right-handed mixing matrix for the quarks, which obeys the constraints from kaon physics. We use experimental constraints on the branching ratios of b{yields}s{gamma}, b{yields}ce{nu}{sub e}, and B{sub d,s}{sup 0}-B{sub d,s}{sup 0} mixing to restrict the parameters of the model: g{sub R}/g{sub L}, M{sub W{sub 2}}, M{sub H}{sup {+-}}, tan{beta} as well as the elements of the right-handed quark mixing matrix V{sub CKM}{sup R}. We present a comparison with the more commonly used (manifest) left-right symmetric model. Our analysis exposes the parameters most sensitive to b transitions and reveals a large parameter space where left- and right-handed quarks mix differently, opening the possibility of observing marked differences in behavior between the standard model and the left-right model.
- OSTI ID:
- 21432839
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 82, Issue 3; Other Information: DOI: 10.1103/PhysRevD.82.033012; (c) 2010 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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ASYMMETRY
B MESONS
BRANCHING RATIO
COMPARATIVE EVALUATIONS
FORECASTING
KAONS
MIXING
PARTICLE DECAY
QUARKS
STANDARD MODEL
SU-2 GROUPS
SYMMETRY
U-1 GROUPS
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
DECAY
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
EVALUATION
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
HADRONS
LIE GROUPS
MATHEMATICAL MODELS
MESONS
PARTICLE MODELS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
STRANGE MESONS
STRANGE PARTICLES
SU GROUPS
SYMMETRY GROUPS
U GROUPS
UNIFIED GAUGE MODELS