CaltechAUTHORS
  A Caltech Library Service

Search for resonances in the dilepton mass distribution in pp collisions at √s = 7 TeV

Chatrchyan, S. and Apresyan, A. and Bornheim, A. and Bunn, J. and Chen, Y. and Gataullin, M. and Ma, Y. and Mott, A. and Newman, H. B. and Rogan, C. and Shin, K. and Timciuc, V. and Traczyk, P. and Veverka, J. and Wilkinson, R. and Yang, Y. and Zhu, R. Y. (2011) Search for resonances in the dilepton mass distribution in pp collisions at √s = 7 TeV. Journal of High Energy Physics, 2011 (5). Art. No. 93. ISSN 1126-6708. https://resolver.caltech.edu/CaltechAUTHORS:20110725-111301870

[img]
Preview
PDF - Published Version
Creative Commons Attribution Non-commercial.

381Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20110725-111301870

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=7 TeV. 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 (G_(KK)) in the Randall-Sundrum model. Upper limits on the inclusive cross section of Z′(G_(KK)) → ℓ^+ ℓ^− relative to Z → ℓ^+ ℓ^− are presented. These limits exclude at 95% confidence level a Z′ with standard-model-like couplings below 1140GeV, the superstring-inspired Z'_ψ below 887 GeV, and, for values of the coupling parameter kM_(Pl) of 0.05 (0.1), Kaluza-Klein gravitons below 855 (1079) GeV.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1007/JHEP05(2011)093DOIUNSPECIFIED
http://www.springerlink.com/content/a656lw07777v7856/PublisherUNSPECIFIED
ORCID:
AuthorORCID
Apresyan, A.0000-0002-6186-0130
Bornheim, A.0000-0002-0128-0871
Bunn, J.0000-0002-3798-298X
Chen, Y.0000-0003-2582-6469
Newman, H. B.0000-0003-0964-1480
Rogan, C.0000-0002-4166-4503
Zhu, R. Y.0000-0003-3091-7461
Additional Information:© 2011 CERN, for the benefit of the CMS Collaboration. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. Received: March 4, 2011. Accepted: April 30, 2011. Published: May 19, 2011. 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).
Funders:
Funding AgencyGrant Number
FMSR (Austria)UNSPECIFIED
FNRS and FWO (Belgium)UNSPECIFIED
CNPq (Brazil)UNSPECIFIED
CAPES (Brazil)UNSPECIFIED
FAPERJ (Brazil)UNSPECIFIED
MES (Bulgaria)UNSPECIFIED
CERNUNSPECIFIED
CASUNSPECIFIED
MOST and NSFC (China)UNSPECIFIED
COLCIENCIAS (Colombia)UNSPECIFIED
MSES (Croatia)UNSPECIFIED
RPF (Cyprus)UNSPECIFIED
Academy of Sciences and NICPB (Estonia)UNSPECIFIED
Academy of FinlandUNSPECIFIED
ME (Finland)UNSPECIFIED
HIP (Finland)UNSPECIFIED
CEA (France)UNSPECIFIED
CNRS/IN2P3 (France)UNSPECIFIED
BMBF (Germany)UNSPECIFIED
DFG (Germany)UNSPECIFIED
HGF (Germany)UNSPECIFIED
GSRT (Greece)UNSPECIFIED
OTKA and NKTH (Hungary)UNSPECIFIED
DAE and DST (India)UNSPECIFIED
IPM (Iran)UNSPECIFIED
SFI (Ireland)UNSPECIFIED
INFN (Italy)UNSPECIFIED
NRF and WCU (Korea)UNSPECIFIED
LAS (Lithuania)UNSPECIFIED
CINVESTAV (Mexico)UNSPECIFIED
CONACyT (Mexico)UNSPECIFIED
SEP and UASLP-FAI (Mexico)UNSPECIFIED
PAEC (Pakistan)UNSPECIFIED
SCSR (Poland)UNSPECIFIED
FCT (Portugal)UNSPECIFIED
JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan)UNSPECIFIED
MST and MAE (Russia)UNSPECIFIED
MSTD (Serbia)UNSPECIFIED
MICINN and CPAN (Spain)UNSPECIFIED
Swiss Funding Agencies (Switzerland)UNSPECIFIED
NSC (Taipei)UNSPECIFIED
TUBITAK and TAEK (Turkey)UNSPECIFIED
STFC (United Kingdom)UNSPECIFIED
NSFUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:Hadron-Hadron Scattering
Issue or Number:5
Record Number:CaltechAUTHORS:20110725-111301870
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110725-111301870
Official Citation:Search for resonances in the dilepton mass distribution in pp collisions at √s = 7 TeV The CMS collaboration, S. Chatrchyan, V. Khachatryan, A. M. Sirunyan and A. Tumasyan, et al.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24526
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:26 Jul 2011 14:53
Last Modified:09 Mar 2020 13:19

Repository Staff Only: item control page