Search for heavy narrow dilepton resonances in pp collisions at s=7 TeV and s=8 TeV

CMS Collaboration

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

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=7 TeV and 8 TeV at the LHC, with integrated luminosities of up to 5.3 and 4.1 fb−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.

Lingua originaleInglese
pagine (da-a)63-82
Numero di pagine20
RivistaPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume720
Numero di pubblicazione1-3
DOI
Stato di pubblicazionePubblicato - 13 mar 2013

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