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

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

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  fb[superscript -1] at √s=7  TeV, and a further 3.7  f...

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Bibliographic Details
Main Authors: Apyan, Aram, Bendavid, Joshua L., Busza, Wit, Butz, Erik M., Cali, Ivan Amos, Chan, M., Dutta, Valentina, Gomez-Ceballos, Guillelmo, Goncharov, Maxim, Kim, Y., Klute, Markus, Krajczar, Krisztian F., Levin, A., Luckey, P. David, Jr., Ma, Teng, Nahn, Steven, Paus, Christoph M. E., Ralph, Duncan Kelley, Roland, Christof E., Rudolph, M., Stephans, George S. F., Stockli, Fabian, Sumorok, Konstanty C., Sung, Kevin Kai Hong, Velicanu, Dragos Alexandru, Wenger, Edward Allen, Wolf, R., Wyslouch, Boleslaw, Yang, M., Yilmaz, Yetkin, Yoon, A.S., Zanetti, Marco, Zhukova, Victoria, Bauer, Gerry P.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2013
Online Access:http://hdl.handle.net/1721.1/79654
https://orcid.org/0000-0002-3831-9071
https://orcid.org/0000-0003-3106-4894
https://orcid.org/0000-0001-6332-5839
https://orcid.org/0000-0002-1260-777X
https://orcid.org/0000-0002-9418-6656
https://orcid.org/0000-0002-6047-4211
https://orcid.org/0000-0003-3681-0649
https://orcid.org/0000-0002-0869-5631
https://orcid.org/0000-0002-1136-6900
Description
Summary: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  fb[superscript -1] at √s=7  TeV, and a further 3.7  fb[superscript -1] at √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[superscript ′]) in the sequential standard model, a split universal extra dimension model, and contact interactions in the helicity-nonconserving 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 ℓν final state in terms of a heavy W[superscript ′] with standard model couplings, masses below 2.90 TeV are excluded.

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