Supersymmetry production cross sections in pp collisions at sqrt{s} = 7 TeV

TL;DR

This paper provides detailed calculations of supersymmetry particle production cross sections at 7 TeV proton-proton collisions, including uncertainties, to aid experimental searches at the LHC.

Contribution

It offers the first comprehensive set of SUSY cross section predictions at 7 TeV, including resummation effects for squark and gluino production, with uncertainty estimates.

Findings

Cross sections for various SUSY processes are calculated.

Uncertainty estimates due to scale variation and PDFs are provided.

Resummation of soft gluon emission improves accuracy for squark and gluino production.

Abstract

This document emerged from work that started in January 2012 as a joint effort by the ATLAS, CMS and LPCC supersymmetry (SUSY) working groups to compile state-of-the-art cross section predictions for SUSY particle production at the LHC. We present cross sections for various SUSY processes in pp collisions at $\sqrt{s} =7$ TeV, including an estimate of the theoretical uncertainty due to scale variation and the parton distribution functions. Further results for higher LHC centre-of-mass energies will be collected at https://twiki.cern.ch/twiki/bin/view/LHCPhysics/SUSYCrossSections. For squark and gluino production, which dominate the inclusive SUSY cross section, we employ calculations which include the resummation of soft gluon emission at next-to-leading logarithmic accuracy, matched to next-to-leading order (NLO) SUSY-QCD. In all other cases we rely on NLO SUSY-QCD predictions.