Research Papers in Physics and Astronomy

 

Date of this Version

January 2008

Comments

Published in Physics Letters B 659 (2008) 856–863. Copyright © 2007 Elsevier B.V. Used by permission.

Abstract

We report results of a search for supersymmetry (SUSY) with gauge-mediated symmetry breaking in di-photon events collected by the D0 experiment at the Fermilab Tevatron Collider in 2002–2006. In 1.1 fb-1 of data, we find no significant excess beyond the background expected from the standard model and set the most stringent lower limits to date for a standard benchmark model on the lightest neutralino and chargino masses of 125 GeV and 229 GeV, respectively, at 95% confidence.

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