Compact Muon Solenoid
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| CMS-PAS-EXO-12-045 | ||
| Search for High-Mass Diphoton Resonances in pp Collisions at $ \sqrt{s}$ = 8 TeV with the CMS Detector | ||
| CMS Collaboration | ||
| May 2015 | ||
| Abstract: A search for high-mass diphoton resonances is performed in proton-proton collisions at $\sqrt{s} $= 8 TeV, with data corresponding to an integrated luminosity of 19.5 fb$^{-1}$, collected by the CMS detector at the CERN Large Hadron Collider. Such a diphoton resonance could be a signature of an excited state of the graviton in the Randall-Sundrum scenario with a warped extra dimension of space. The background to this signal comes from real standard model diphoton production, and from photon+jet or dijet processes where one or two jets produce a fake photon signature in the detector. The observed diphoton mass distribution is compared to the background prediction, and no significant excess of events over the background is found. 95% confidence level limits are set in the parameter space of the Randall-Sundrum model: masses below 1450-2780 GeV are excluded for the first excited state of the Randall-Sundrum graviton, for values of the coupling parameter $k/M_{\textrm{Pl}}$ in the range 0.01 $ \le k/M_{\textrm{Pl}} \le $ 0.1. | ||
| Links: CDS record (PDF) ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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