Search for heavy narrow dilepton resonances in pp collisions at √s=7 TeV and √s=8 TeV
Abstract
An updated search for heavy narrow resonances decaying to muon or electron pairs using the CMS detector is presented. Data samples from pp collisions at s=7TeV and 8 TeV at the LHC, with integrated luminosities of up to 5.3 and 4.1fb−1, respectively, are combined. No evidence for a heavy narrow resonance is observed. The analysis of the combined data sets excludes, at 95% confidence level, a Sequential Standard Model ZSSM′ resonance lighter than 2590 GeV, a superstring-inspired
Zψ′ lighter than 2260 GeV, and Kaluza–Klein gravitons lighter than 2390 (2030) GeV, assuming that the coupling parameter k/M¯Pl is 0.10 (0.05). These are the most stringent limits to date. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000065327Publication status
publishedExternal links
Journal / series
Physics Letters BVolume
Pages / Article No.
Publisher
ElsevierSubject
CMS; Physics; Resonances; Z; Muons; ElectronsOrganisational unit
03381 - Pauss, Felicitas (emeritus)
03593 - Dissertori, Günther / Dissertori, Günther
03904 - Wallny, Rainer / Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)
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