Inclusive search for supersymmetry using razor variables in pp collisions at sqrt(s) = 13 TeV

TL;DR

This paper reports a search for supersymmetric particles using razor variables in proton-proton collisions at 13 TeV, setting new exclusion limits on gluino and top squark masses based on CMS data.

Contribution

It introduces an inclusive razor-variable-based analysis for supersymmetry, providing the first limits in this channel at 13 TeV with CMS data.

Findings

No significant excess observed over background.

Gluino masses below 1.6 TeV are excluded for certain decay scenarios.

Top squark masses up to 750 GeV are excluded.

Abstract

An inclusive search for supersymmetry using razor variables is performed in events with four or more jets and no more than one lepton. The results are based on a sample of proton-proton collisions corresponding to an integrated luminosity of 2.3 inverse femtobarns collected with the CMS experiment at a center-of-mass energy of sqrt(s) = 13 TeV. No significant excess over the background prediction is observed in data, and 95% confidence level exclusion limits are placed on the masses of new heavy particles in a variety of simplified models. Assuming that pair-produced gluinos decay only via three-body processes involving third-generation quarks plus a neutralino, and that the neutralino is the lightest supersymmetric particle with a mass of 200 GeV, gluino masses below 1.6 TeV are excluded for any branching fractions for the individual gluino decay modes. For some specific decay mode scenarios, gluino masses up to 1.65 TeV are excluded. For decays to first- and second-generation quarks and a neutralino with a mass of 200 GeV, gluinos with masses up to 1.4 TeV are excluded. Pair production of top squarks decaying to a top quark and a neutralino with a mass of 100 GeV is excluded for top squark masses up to 750 GeV.