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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

Article number071701(R)
<mark>Journal publication date</mark>2/10/2012
<mark>Journal</mark>Physical Review D
Issue7
Volume86
Number of pages7
<mark>Original language</mark>English

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