Impact of FCNC top quark interactions on BR(t -> b W)

Details Impact of FCNC top quark interactions on BR(t -> b W) Impact of FCNC top quark interactions on BR(t -> b W)

2009-03-25

arxiv.org/abs/0903.4470v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 5 figures

Scientific paper

We study the effect that FCNC interactions of the top quark will have on the branching ratio of charged decays of the top quark. We have performed an integrated analysis using Tevatron and B-factories data and with just the further assumption that the CKM matrix is unitary we can obtain very restrictive bounds on the strong and electroweak FCNC branching ratios Br(t -> q X) < 4.0 10^{-4}, where X is any vector boson and a sum in q = u,c is implied.

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