4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Search for Z+photon events with Large Missing Transverse Energy in ppbar Collisions at 1.96 TeV

5 Jul 2012, 12:00
15m
Plenary 3 (Melbourne Convention and Exhibition Centre)

Plenary 3

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 2 - Beyond the Standard Model - SUSY TR2 - Plenary 3 - Beyond the Standard Model - SUSY

Speaker

Dr James Alexander Kraus (Michigan State University (US))

Description

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 < 87 TeV, corresponding to neutralino masses of < 151 GeV.

Primary author

James Kraus (University of Mississippi)

Presentation Materials