Compact Muon Solenoid
LHC, CERN
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| CMS-EXO-10-013 ; CERN-PH-EP-2011-002 | ||
| Search for Resonances in the Dilepton Mass Distribution in pp Collisions at $\sqrt{s}$ = 7 TeV | ||
| CMS Collaboration | ||
| 7 March 2011 | ||
| J. High Energy Phys. 05 (2011) 093 | ||
| 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 $\sqrt{s}$=7 TeV. The event samples correspond to integrated luminosities of 40 inverse picobarns in the dimuon channel and 35 inverse picobarns 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'($G_{KK}$) decaying to oppositely charged leptons relative to Z decaying to oppositely charged leptons are presented. These limits exclude at 95% confidence level a Z' with standard-model-like couplings below 1140 GeV, the superstring-inspired $Z'_\psi$ below 887 GeV, and, for values of the coupling parameter $k/\bar{M}_{Pl}$ of 0.05 (0.1), Kaluza-Klein gravitons below 855 (1079) GeV. | ||
| Links: e-print arXiv:1103.0981 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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