Search for supersymmetric partners of electrons and muons in proton–proton collisions at s=13TeV

The CMS Collaboration, cms-publication-committee-chair@cern.ch

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

A search for direct production of the supersymmetric (SUSY) partners of electrons or muons is presented in final states with two opposite-charge, same-flavour leptons (electrons and muons), no jets, and large missing transverse momentum. The data sample corresponds to an integrated luminosity of 35.9 fb−1 of proton–proton collisions at s=13TeV, collected with the CMS detector at the LHC in 2016. The search uses the MT2 variable, which generalises the transverse mass for systems with two invisible objects and provides a discrimination against standard model backgrounds containing W bosons. The observed yields are consistent with the expectations from the standard model. The search is interpreted in the context of simplified SUSY models and probes slepton masses up to approximately 290, 400, and 450 GeV, assuming right-handed only, left-handed only, and both right- and left-handed sleptons (mass degenerate selectrons and smuons), and a massless lightest supersymmetric particle. Limits are also set on selectrons and smuons separately. These limits show an improvement on the existing limits of approximately 150 GeV.

Original languageEnglish
Pages (from-to)140-166
Number of pages27
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume790
DOIs
Publication statusPublished - 10 Mar 2019

Keywords

  • CMS
  • Physics
  • SUSY

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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