Search for large extra dimensions in dimuon and dielectron events in pp collisions at root s=7 TeV
PHYSICS LETTERS B, vol.711, no.1, pp.15-34, 2012 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 711 Issue: 1
- Publication Date: 2012
- Doi Number: 10.1016/j.physletb.2012.03.029
- Journal Name: PHYSICS LETTERS B
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.15-34
- Keywords: CMS, Physics, Exotica, Dimuon, Dielectron, ADD, Extra dimensions, Gravitons, Field theories in dimensions other than four
- Dokuz Eylül University Affiliated: Yes
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 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 > 2.4 TeV to M-s > 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.