Probing Supersymmetry using Event Shape variables at 8 TeV LHC

TL;DR

This paper evaluates the potential for discovering supersymmetry at the LHC using event shape variables, providing predictions for 7 and 8 TeV energies with different luminosities, and compares results with CMS and ATLAS exclusions.

Contribution

It introduces an optimized selection strategy based on hadronic event shape variables for SUSY searches at the LHC, with detailed background and signal analysis for different energies and luminosities.

Findings

Predicted discovery reach in the m0-m1/2 plane at 7 and 8 TeV.

Comparison of discovery potential with CMS and ATLAS exclusion limits.

Discovery reach in gluino and squark mass planes at different energies.

Abstract

We have revisited the prospects of Supersymmetry(SUSY) searches at the LHC with 7 TeV energy along with the prediction of the discovery potential at 8 TeV energy assuming an integrated luminosity 5 $fb ^{-1}$ and 20 $\invfb$ with mSUGRA/CMSSM as a model framework. We discuss further optimization of our selection strategy which is based on the hadronic event shape variables. Evaluating the standard model backgrounds and signal rates in detail we predict the discovery reach in the $m_0 - m_{1/2}$ plane for 7 TeV with 5$\invfb$ luminosity. We also present the discovery reach for 8 TeV energy with an integrated luminosity 5$\invfb$ and 20 $\invfb$. A comparison is made between our results and the exclusion plots obtained by CMS and ATLAS. Finally, discovery reach in the gluino and squark mass plane at the 7 TeV and 8 TeV energy is also presented.