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Title

Search for large extra dimensions in dimuon and dielectron events 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. ; Jorda, C. ; Lobelle Pardo, P. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Matorras, Francisco ; Muñoz Sánchez, F. J. ; Piedra, Jonatan ; Rodrigo, Teresa ; Rodríguez Marrero, Ana Y. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Sobron Sañudo, M. ; Vila, Iván ; Vilar, Rocío ; CMS Collaboration
Issue Date2012
PublisherElsevier
CitationPhysics Letters B 711(1): 15-34 (2012)
AbstractResults are presented from a search for large, extra spatial dimensions in events with either two isolated muons or two isolated electrons. The data are from proton-proton interactions at s=7 TeV collected with the CMS detector at the LHC. The size of the data sample corresponds to an integrated luminosity of approximately 2 fb -1. The observed dimuon and dielectron mass spectra are found to be consistent with standard-model expectations. Depending on the number of extra dimensions, the 95% confidence level limits from the combined μμ and ee channels range from M s>2.4 TeV to M s>3.8 TeV, where M s characterizes the scale for the onset of quantum gravity.
DescriptionOpen access: This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0.-- et al.
Publisher version (URL)http://dx.doi.org/10.1016/j.physletb.2012.03.029
URIhttp://hdl.handle.net/10261/109076
DOI10.1016/j.physletb.2012.03.029
Identifiersdoi: 10.1016/j.physletb.2012.03.029
issn: 0370-2693
Appears in Collections:(IFCA) Artículos
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