Model independent predictions for rare top decays with weak coupling

Journal Article · Thu Apr 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.074008· OSTI ID:21409471

Datta, Alakabha; Duraisamy, Murugeswaran ^[1]

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1. Department of Physics and Astronomy, University of Mississippi, Lewis Hall, University, Mississippi, 38677 (United States)

Measurements at B factories have provided important constraints on new physics in several rare processes involving the B meson. New physics, if present in the b quark sector may also affect the top sector. In an effective Lagrangian approach, we write down operators, where effects in the bottom and the top sector are related. Assuming the couplings of the operators to be of the same size as the weak coupling g of the standard model and taking into account constraints on new physics from the bottom sector as well as top branching ratios, we make predictions for the rare top decays t{yields}cV, where V={gamma}, Z. We find branching fractions for these decays within possible reach of the LHC. Predictions are also made for t{yields}sW.

• OSTI ID: 21409471
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 7; Other Information: DOI: 10.1103/PhysRevD.81.074008; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BRANCHING RATIO
CERN LHC
COUPLING
FORECASTING
LAGRANGIAN FUNCTION
MESON FACTORIES
PARTICLE DECAY
STANDARD MODEL
WEAK-COUPLING MODEL
ACCELERATORS
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
CYCLIC ACCELERATORS
DECAY
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONS
GRAND UNIFIED THEORY
HADRONS
MATHEMATICAL MODELS
MESONS
NUCLEAR MODELS
PARTICLE MODELS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
STORAGE RINGS
SYNCHROTRONS
UNIFIED GAUGE MODELS