Search for large extra dimensions in dimuon and dielectron events in pp collisions at s=7 TeV
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Chatrchyan, S.; Brochero Cifuentes, Javier Andrés; Cabrillo Bartolomé, José Ibán; Calderón Tazón, Alicia; Chuang, S. H.; Duarte Campderros, Jorge; Felcini, Marta; Fernández García, Marcos; Gómez Gramuglio, Gervasio; González Sánchez, Francisco Javier; Jordá Lope, Clara; Lobelle Pardo, Patricia; López Virto, María Amparo; Marco de Lucas, Jesús; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, Francisco; Muñoz Sánchez, Francisca Javiela; Piedra Gómez, Jonatan; [et al.]Fecha
2012-05Derechos
Attribution-NonCommercial-NoDerivatives 4.0 International. ©2012 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. Open access under CC BY-NC-ND license
Publicado en
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2012, 711(1), 15-34
Editorial
Elsevier
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Palabras clave
CMS
Physics
Exotica
Dimuon
Dielectron
ADD
Extra dimensions
Gravitons
Field theories in dimensions other than four
Resumen/Abstract
Results 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 ?? and ee channels range from Ms > 2.4 TeV to Ms > 3.8 TeV, where Ms characterizes the scale for the onset of quantum gravity.
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