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Title: Model independent predictions for rare top decays with weak coupling

Abstract

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.

Authors:
;  [1]
  1. Department of Physics and Astronomy, University of Mississippi, Lewis Hall, University, Mississippi, 38677 (United States)
Publication Date:
OSTI Identifier:
21409471
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 81; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.81.074008; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Datta, Alakabha, and Duraisamy, Murugeswaran. Model independent predictions for rare top decays with weak coupling. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.81.074008.
Datta, Alakabha, & Duraisamy, Murugeswaran. Model independent predictions for rare top decays with weak coupling. United States. https://doi.org/10.1103/PHYSREVD.81.074008
Datta, Alakabha, and Duraisamy, Murugeswaran. 2010. "Model independent predictions for rare top decays with weak coupling". United States. https://doi.org/10.1103/PHYSREVD.81.074008.
@article{osti_21409471,
title = {Model independent predictions for rare top decays with weak coupling},
author = {Datta, Alakabha and Duraisamy, Murugeswaran},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.81.074008},
url = {https://www.osti.gov/biblio/21409471}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 81,
place = {United States},
year = {Thu Apr 01 00:00:00 EDT 2010},
month = {Thu Apr 01 00:00:00 EDT 2010}
}