Anomalous Couplings of the Third Generation in Rare B Decays

Abstract

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.

18 pages, 5 figures

References in corpus (1)

• Analysis of tbW and ttZ couplings from CLEO and LEP/SLC data

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