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

The CMS collaboration

研究成果: 雜誌貢獻期刊論文同行評審

29 引文 斯高帕斯(Scopus)

摘要

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-1in the dimuon channel and 35 pb-1in 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+-relative to Z → 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.

原文???core.languages.en_GB???
文章編號93
期刊Journal of High Energy Physics
2011
發行號5
DOIs
出版狀態已出版 - 2011

指紋

深入研究「Search for resonances in the dilepton mass distribution in pp collisions at √s = 7TeV」主題。共同形成了獨特的指紋。

引用此