Search for charge-asymmetric production of W' bosons in top pair + jet events from pp collisions at sqrt(s) = 7 TeV

Abstract : A search is presented for charge-asymmetric production of a W' boson that has been proposed to accommodate the forward-backward asymmetry observed in the production of top-antitop quark pairs at the Tevatron. The new heavy W' boson would be produced in association with a top quark and would decay into top and down quarks. The data correspond to an integrated luminosity of 5.0 inverse femtobarns in pp collisions at a center-of-mass energy of 7 TeV, recorded by the CMS detector at the LHC. No significant excess above the standard model expectations is observed, and, from a combination of the electron-plus-jets and muon-plus-jets channels, a lower limit of 840 GeV is set on the W' boson mass at the 95% confidence level.
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http://hal.in2p3.fr/in2p3-00709564
Contributor : Sylvie Flores <>
Submitted on : Tuesday, June 19, 2012 - 8:13:45 AM
Last modification on : Monday, February 10, 2020 - 6:13:11 PM

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S. Chatrchyan, M. Besancon, S. Choudhury, M. Dejardin, D. Denegri, et al.. Search for charge-asymmetric production of W' bosons in top pair + jet events from pp collisions at sqrt(s) = 7 TeV. Physics Letters B, Elsevier, 2012, 717, pp.351-370. ⟨10.1016/j.physletb.2012.09.048⟩. ⟨in2p3-00709564⟩

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