Abstract
This contribution presents a search for squarks and gluinos in final states containing two isolated electrons or muons using the 20.3 fb-1 of s=8 TeV proton-proton collisions recorded by the ATLAS detector at the LHC during 2012. The search uses a set of variables carrying information on the event kinematics both transverse and parallel to the beam line. No excess above the Standard Model expectation is observed, therefore exclusion limits are set on sparticle masses for various simplified model scenarios and a minimal universal extra dimensions model.
Highlights
Supersymmetry (SUSY) is one of the most popular extensions of the Standard Model (SM), predicting a supersymmetric partner for each SM particle that differs in spin by 1/2 from its SM counterpart.This contribution summarizes a search for gluinos and two first- and isolated lseepctoonnds-g(ienne2r0at.i3onfbs−q1uaorfks√ins events =8 with TeV data collected in 2012 by the ATLAS [1] detector at the LHC) making use of the Razor variables [2], a set of kinematic variables that exploit both transverse and longitudinal event information
The background due to semi-leptonic ttand W + jets enters into the two-lepton signal regions either due to jets being misidentified as leptons or due to the detection of a real lepton, sufficiently isolated, coming from a heavy-flavour decay
No significant deviation from the expected backgrounds is observed in the data
Summary
Supersymmetry (SUSY) is one of the most popular extensions of the Standard Model (SM), predicting a supersymmetric partner for each SM particle that differs in spin by 1/2 from its SM counterpart.
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