Search for anomalous semileptonic decay of heavy flavor hadrons produced in association with a W boson at CDF II

Abstract

We present a search for anomalous semileptonic decays of heavy flavor hadrons produced in association with a $W$ boson, in proton-antiproton collisions at sqrt{s}=1.96 TeV. We use 162 pb-1 of data collected with the CDF II detector at the Fermilab Tevatron Collider. We select events with one W boson and at least one jet with an identified secondary vertex. In the jets with a secondary vertex we look for a semileptonic decay to a muon. We compare the number of jets with both a secondary vertex and a semileptonic decay, and the kinematic properties of these jets, with the standard model expectation of W plus heavy flavor production and decay. No discrepancy is seen between the observation and the expectation, and we set limits on the production cross section of a B-like hadron with an anomalously high semileptonic branching ratio.

arXiv comment8 pages, 2 figures, submitted to PRD-RC; replaced to adjust the page format

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Cited by in corpus (3)

• First Measurement of the Production of a W Boson in Association with a Single Charm Quark in Proton Anti-proton Collisions at sqrt(s)=1.96 TeV
• Review of Properties of the Top Quark from Measurements at the Tevatron
• Review of searches for Higgs bosons and beyond the standard model physics at the Tevatron