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Search for new physics in final states with a lepton and missing transverse energy in pp collisions at the LHC

Abstract : This letter describes the search for an enhanced production rate of events with a charged lepton and a neutrino in high-energy pp collisions at the LHC. The analysis uses data collected with the CMS detector, with an integrated luminosity of 5.0 inverse femtobarns at sqrt(s) = 7 TeV, and a further 3.7 inverse femtobarns at sqrt(s) = 8 TeV. No evidence is found for an excess. The results are interpreted in terms of limits on a heavy charged gauge boson (W') in the sequential standard model, a split universal extra dimension model, and contact interactions in the helicity-non-conserving model. For the last, values of the binding energy below 10.5 (8.8) TeV in the electron (muon) channel are excluded at a 95% confidence level. Interpreting the ell nu final state in terms of a heavy W' with standard model couplings, masses below 2.90 TeV are excluded.
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http://hal.in2p3.fr/in2p3-00787799
Contributor : Sylvie Flores <>
Submitted on : Wednesday, February 13, 2013 - 7:57:09 AM
Last modification on : Friday, June 5, 2020 - 10:52:15 AM

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S. Chatrchyan, M. Besançon, S. Choudhury, F. Couderc, M. Dejardin, et al.. Search for new physics in final states with a lepton and missing transverse energy in pp collisions at the LHC. Physical Review D, American Physical Society, 2013, 87, pp.072005. ⟨10.1103/PhysRevD.87.072005⟩. ⟨in2p3-00787799⟩

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