@article{10902/26915,
year = {2011},
url = {https://hdl.handle.net/10902/26915},
abstract = {A search for narrow resonances at high mass in the dimuon and dielectron channels has been performed by the CMS experiment at the CERN LHC, using pp collision data recorded at  √s = 7TeV. The event samples correspond to integrated luminosities of 40 pb−1 in the dimuon channel and 35 pb−1 in the dielectron channel. Heavy dilepton resonances are predicted in theoretical models with extra gauge bosons (Z′) or as Kaluza-Klein graviton excitations (GKK) in the Randall-Sundrum model. Upper limits on the inclusive cross section of Z′(GKK) ! ℓ+ℓ− relative to Z ! ℓ+ℓ− are presented. These limits exclude at 95% confidence level a Z′ with standard-model-like couplings below 1140 GeV, the superstring-inspired Z′ ψ below 887 GeV, and, for values of the coupling parameter k/MPl of 0.05 (0.1), Kaluza-Klein gravitons below 855 (1079) GeV.},
organization = {We wish to congratulate our colleagues in the CERN accelerator departments for the   excellent performance of the LHC machine. We thank the technical and administrative   staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria);   FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES   (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland,   ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF   (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM   (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV,   CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland);   FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE   (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland);   NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA).},
publisher = {Springer Verlag},
publisher = {Journal of High Energy Physics, 2011, 93, 1-35},
title = {Search for resonances in the dilepton mass distribution in pp collisions at √s = 7TeV},
author = {Chatrchyan, Serguei and Brochero Cifuentes, Javier Andrés and Cabrillo Bartolomé, José Iban and Calderón Tazón, Alicia and Chuang, S. H. and Duarte Campderros, Jorge and Felcini, Marta and Fernández García, Marcos and Gómez Gramuglio, Gervasio and González Sánchez, Francisco Javier and Jordá Lope, Clara and Lobelle Pardo, Patricia and López Virto, María Amparo and Marco de Lucas, Jesús and Marco de Lucas, Rafael José and Martínez Rivero, Celso and Matorras Weinig, Francisco and Muñoz Sánchez, Francisca Javiela and Piedra Gómez, Jonatan and Rodrigo Anoro, Teresa},
}