Abstract
Supersymmetry (SUSY) is one of the most relevant scenarios of new physics searched by the ATLAS experiment at the CERN Large Hadron Collider. In this writeup the principal search strategies employed by ATLAS are outlined and the most recent results for analyses targeting SUSY discovery are discussed. A wide range of signatures is covered motivated by various theoretical scenarios and topologies: strong production, third-generation fermions, long-lived particles and R-parity violation, among others. The results are based on up to ~5 fb-1 of data recorded during 2010-2011 at sqrt(s) = 7 TeV centre-of-mass energy by the ATLAS experiment at the LHC.
Highlights
Supersymmetry (SUSY) [1] is an extension of the Standard Model (SM) which assigns to each SM field a superpartner field with a spin differing by a half unit
SUSY searches in collider experiments typically focus on events with high transverse missing energy (ETmiss ) which can arise from Lightest Supersymmetric Particles (LSPs), in the case of R-parity conserving SUSY, or from neutrinos produced in LSP decays, when R-parity is broken
The analysis presented here [8] consists of a search for direct production of weak gauginos in final states with three leptons and ETmiss at s = 7 TeV with 2.06 fb−1
Summary
Supersymmetry (SUSY) [1] is an extension of the Standard Model (SM) which assigns to each SM field a superpartner field with a spin differing by a half unit. The√reported results are based on up to 4.7 fb−1 of data from pp collisions at a center-of-mass energy of s = 7 TeV recorded in 2010 – 2011 by ATLAS [2] at the Large Hadron Collider (LHC) [3]. R-parity violating models is possible (cf. Sec. 3)
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