, 2011:85,
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Date: 17 May 2011

Search for large extra dimensions in the diphoton final state at the Large Hadron Collider


A search for large extra spatial dimensions via virtual-graviton exchange in the diphoton channel has been carried out with the CMS detector at the LHC. No excess of events above the standard model expectations is found using a data sample collected in proton-proton collisions at \( \sqrt {s} = 7 \) TeV and corresponding to an integrated luminosity of 36 pb 1. New lower limits on the effective Planck scale in the range of 1.6–2.3TeV at the 95% confidence level are set, providing the most restrictive bounds to date on models with more than two large extra dimensions.