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Search for R-parity-violating supersymmetry in events with four or more leptons in sqrt(s) =7 TeV pp collisions with the ATLAS detector

journal contribution
posted on 2023-06-08, 13:39 authored by Antonella De SantoAntonella De Santo, The ATLAS Collaboration
A search for new phenomena in final states with four or more leptons (electrons or muons) is presented. The analysis is based on 4.7 fb-1 of $ \sqrt{s}=7\;\mathrm{TeV} $ proton-proton collisions delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in two signal regions: one that requires moderate values of missing transverse momentum and another that requires large effective mass. The results are interpreted in a simplified model of R-parity-violating supersymmetry in which a 95% CL exclusion region is set for charged wino masses up to 540 GeV. In an R-parity-violating MSUGRA/CMSSM model, values of m 1/2 up to 820 GeV are excluded for 10 < tan ß < 40.

History

Publication status

  • Published

Journal

Journal of High Energy Physics

ISSN

1029-8479

Publisher

Springer Verlag

Issue

12

Volume

2012

Page range

124

Department affiliated with

  • Physics and Astronomy Publications

Notes

I established and have led for five years (2007-12) the ATLAS SUSY Multilepton physics group, which searches for supersymmetry signals in final states with three or more leptons at ATLAS. I successfully led this group to first publications using the ATLAS 2011 dataset. I was lead author of this paper and my post-doc was one of two editors of the paper. Article No 124

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2013-01-11

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