Search for R-parity-violating supersymmetry in events with four or more leptons in $\sqrt{s}=7$ TeV $\mathit{pp}$ collisions with the ATLAS detector

Bibliographic description

punktacja MEiN [2012 A]: 40

title:	Search for R-parity-violating supersymmetry in events with four or more leptons in $\sqrt{s}=7$ TeV $\mathit{pp}$ collisions with the ATLAS detector
author:	Richter-Wąs Elżbieta
contributor:	Współautorami artykułu są członkowie ATLAS Collaboration w liczbie 2908
institution:	ATLAS Collaboration
journal title:	The Journal of High Energy Physics
volume:	2012
issue:	12
date of publication :	2012
article ID:	124
ISSN:	1126-6708
eISSN:	1029-8479 1127-2236
DOI:	10.1007/JHEP12(2012)124
language:	English
journal language:	English
abstract in English:	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 $\sqrt{s}=7$ 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 $\beta$ < 40.
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper