Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF

2010/12/13 by CDF Collaboration, T. Aaltonen · 1 voice
Physics and Astronomy · #hep-ex

paper · pdf · doi:10.1103/physrevd.83.011102

published as Phys.Rev.D83:011102,2011 · 8 pages, 4 figures, submitted to Phys.Rev.D. Rapid Communications

Abstract

We report on a search for new particles in the diphoton channel using a data sample of p p 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/M_Pl) of 0.01 and 0.1 respectively.

Discussions

• CDF reports another null result for new physics, this times a particular kind of gravitions, in http://arxiv.org/abs/1012.2795 [bsky, 0 points, 0 comments]

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