Search for large extra dimensions in dimuon and dielectron events in pp collisions at root s=7 TeV
PHYSICS LETTERS B, cilt.711, sa.1, ss.15-34, 2012 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 711 Sayı: 1
- Basım Tarihi: 2012
- Doi Numarası: 10.1016/j.physletb.2012.03.029
- Dergi Adı: PHYSICS LETTERS B
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.15-34
- Anahtar Kelimeler: CMS, Physics, Exotica, Dimuon, Dielectron, ADD, Extra dimensions, Gravitons, Field theories in dimensions other than four, FERMION-PAIR PRODUCTION, CONTACT INTERACTIONS, E(+)E(-) COLLISIONS, QCD CORRECTIONS, CROSS-SECTION, DISTRIBUTIONS, HIERARCHY, ENERGIES, GRAVITY, MODELS
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Çukurova Üniversitesi Adresli: Evet
Özet
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.