SUSY Discovery Potential and Benchmarks for Early Runs at $\sqrt s =7$ TeV at the LHC

TL;DR

This paper evaluates the LHC's potential to discover supersymmetry at 7 TeV with early data, identifying benchmark scenarios and analyzing multiple signature channels to confirm SUSY detection.

Contribution

It provides new benchmarks for early SUSY discovery at the LHC and updates b-tagging efficiencies for analysis.

Findings

Multiple signature channels can achieve 5σ discovery at 7 TeV with 0.1--2 fb$^{-1}$

Some benchmarks are discoverable with as little as 0.1 fb$^{-1}$ of data

SUSY signals are detectable above standard model backgrounds in various channels

Abstract

We carry out an analysis of the potential of the Large Hadron Collider (LHC) to discover supersymmetry in runs at $\sqrt s=7$ TeV with an accumulated luminosity of (0.1--2) fb$^{-1}$ of data. The analysis is done both with minimal supergravity (mSUGRA) and supergravity (SUGRA) models with non-universal soft breaking. Benchmarks for early discovery with (0.1--2) fb$^{-1}$ of data are given. We provide an update of b-tagging efficiencies in PGS 4 appropriate for LHC analyses. A large number of signature channels are analyzed and it is shown that each of the models exhibited are discoverable at the 5$\sigma$ level or more above the standard model background in several signature channels which would provide cross checks for a discovery of supersymmetry (SUSY). It is shown that some of the benchmarks are discoverable with 0.1 fb$^{-1}$ of data again with detectable signals in several channels.