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Search for Randall-Sundrum gravitons in the diphoton channel at CDF

CollaborationWith : Clark, Allan Geoffrey / Garcia Navarro, Jose Enrique / Lister, Alison / Wu, Xin
Published in Physical Review. D. 2011, vol. 83, no. 01, p. 011102
Abstract We report on a search for new particles in the diphoton channel using a data sample of pp collisions at s√=1.96  TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4  fb−1. The diphoton invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the production cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459  GeV/c2 and 963  GeV/c2, at the 95% confidence level, for coupling parameters (k/MPl) of 0.01 and 0.1, respectively.
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CDF COLLABORATION. Search for Randall-Sundrum gravitons in the diphoton channel at CDF. In: Physical Review. D, 2011, vol. 83, n° 01, p. 011102. https://archive-ouverte.unige.ch/unige:39114

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Deposited on : 2014-08-04

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