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

CollaborationWith : Campanelli, Mario / Clark, Allan Geoffrey / D'Onofrio, Monica / Donega, Mauro / Lister, Alison / Liu, Yanwen / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review. D. 2006, vol. 73, no. 05, p. 051101
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 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.
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CDF COLLABORATION. Search for anomalous semileptonic decay of heavy flavor hadrons produced in association with a W boson at CDF II. In: Physical Review. D, 2006, vol. 73, n° 05, p. 051101. https://archive-ouverte.unige.ch/unige:38335

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Deposited on : 2014-06-30

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