Anomalous Couplings of the Third Generation in Rare B Decays

Details Anomalous Couplings of the Third Generation in Rare B Decays Anomalous Couplings of the Third Generation in Rare B Decays

1999-06-10

arxiv.org/abs/hep-ph/9906329v2

Phys.Rev. D61 (2000) 114016

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 5 figures

Scientific paper

10.1103/PhysRevD.61.114016

We study the potential effect of anomalous couplings of the third generation quarks to gauge bosons in rare B decays. We focus on the constraints from flavor changing neutral current processes such as $b\to s\gamma$ and $b\to s \ell^+\ell^-$. We consider both dimension-four and dimension-five operators and show that the latter can give large deviations from the standard model in the still unobserved dilepton modes, even after the bounds from $b\to s\gamma$ and precision electroweak observables are taken into account.

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