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Title

Search for heavy neutrinos and WR bosons with right-handed couplings in a left-right symmetric model in pp collisions at √s=7 TeV

AuthorsChatrchyan, S.; Brochero Cifuentes, J. A. ; Cabrillo, I. J. ; Calderon, Alicia ; Chuang, S. H. ; Duarte Campderros, J. ; Felcini, Marta ; Fernández, M. ; Gómez, G. ; González Sánchez, J. ; Graziano, A. ; Jorda, C. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Martínez-Rivero, Celso ; Matorras, Francisco ; Muñoz Sánchez, F. J. ; Rodrigo, Teresa ; Rodríguez Marrero, Ana Y. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Sobron Sañudo, M. ; Vila, Iván ; Vilar, Rocío ; CMS Collaboration
Issue Date2012
PublisherAmerican Physical Society
CitationPhysical Review Letters 109: 261802 (2012)
AbstractResults are presented from a search for heavy, right-handed muon neutrinos, Nο, and right-handed WR bosons, which arise in the left-right symmetric extensions of the standard model. The analysis is based on a 5.0 fb-1 sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected by the CMS detector at the Large Hadron Collider. No evidence is observed for an excess of events over the standard model expectation. For models with exact left-right symmetry, heavy right-handed neutrinos are excluded at 95% confidence level for a range of neutrino masses below the WR mass, dependent on the value of MWR. The excluded region in the two-dimensional (MWR, MNο) mass plane extends to MWR=2.5 TeV. © 2012 CERN. Published by the American Physical Society.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.109.261802
URIhttp://hdl.handle.net/10261/109068
DOI10.1103/PhysRevLett.109.261802
Identifiersdoi: 10.1103/PhysRevLett.109.261802
issn: 0031-9007
e-issn: 1079-7114
Appears in Collections:(IFCA) Artículos
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