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Title

Search for the Production of Narrow tb Resonances in 1.9  fb−1 of pp Collisions at s√=1.96  TeV

CollaborationWith : Clark, Allan Geoffrey / Garcia Navarro, Jose Enrique / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review Letters. 2009, vol. 103, no. 04, p. 041801
Abstract We present new limits on resonant tb production in pp collisions at s√=1.96  TeV, using 1.9  fb−1 of data recorded with the CDF II detector at the Fermilab Tevatron. We reconstruct a candidate tb mass in events with a lepton, neutrino candidate, and two or three jets, and search for anomalous tb production as modeled by W′→tb. We set a new limit on a right-handed W′ with standard model-like coupling, excluding any mass below 800  GeV/c2 at 95% C.L. The cross section for any narrow, resonant tb production between 750 and 950  GeV/c2 is found to be less than 0.28 pb at 95% C.L. We also present an exclusion of the W′ coupling strength versus W′ mass over the range 300–950  GeV/c2.
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CDF COLLABORATION. Search for the Production of Narrow tb Resonances in 1.9  fb−1 of pp Collisions at s√=1.96  TeV. In: Physical Review Letters, 2009, vol. 103, n° 04, p. 041801. doi: 10.1103/PhysRevLett.103.041801 https://archive-ouverte.unige.ch/unige:38600

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Deposited on : 2014-07-14

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