Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP02(2015)141
Keywords
Beyond Standard Model; Effective field theories; Rare Decays
Categories
Funding
- National Science Foundation [PHYS-1066293]
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Economic Development Innovation
- U.S. National Science Foundation under CAREER Grant [PHY-1151392]
- DOE grant [DE-SC0011784]
- Slovenian Research Agency (ARRS)
- U.S. Department of Energy (DOE) [DE-SC0011784] Funding Source: U.S. Department of Energy (DOE)
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Anomalous couplings of the Z boson to top quarks are only marginally constrained by direct searches and are still sensitive to new particle dynamics at the TeV scale. Employing an effective field theory approach we consider the dimension-six operators which generate deviations from the standard-model vector and axial-vector interactions. We show that rare B and K meson decays together with electroweak precision observables provide strong constraints on these couplings. We also consider constraints from t-channel single-top production.
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