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Search for Zgamma events with large missing transverse energy in ppbar collisions at sqrt(s)=1.96 TeV

Research output: Contribution to journalJournal article

Published

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Journal publication date2/10/2012
JournalPhysical Review D
Journal number7
Volume86
Number of pages7
Original languageEnglish

Abstract

We present the first search for supersymmetry (SUSY) in Zgamma final states with large missing transverse energy using data corresponding to an integrated luminosity of 6.2 fb-1 collected with the D0 experiment in ppbar collisions at sqrt(s)=1.96 TeV. This signature is predicted in gauge-mediated SUSY-breaking models, where the lightest neutralino is the next-to-lightest supersymmetric particle (NLSP) and is produced in pairs, possibly through decay from heavier supersymmetric particles. The NLSP can decay either to a Z boson or a photon and an associated gravitino that escapes detection. We exclude this model at the 95% C.L. for SUSY breaking scales of Lambda

Bibliographic note

© 2012 American Physical Society