Search for large extra dimensions in dimuon and dielectron events in pp collisions at root s=7 TeV
CMS Collaboration (ukupan broj autora: 2272)
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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 root 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 mu mu and ee channels range from M-s GT 2.4 TeV to M-s GT 3.8 TeV, where M-s characterizes the scale for the onset of quantum gravity. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
Keywords:CMS / Physics / Exotica / Dimuon / Dielectron / ADD / Extra dimensions / Gravitons / Field theories in dimensions other than four
Source:Physics Letters B, 2012, 711, 1, 15-34
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