Search for supersymmetry with a compressed mass spectrum in the vector boson fusion topology with 1-lepton and 0-lepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV

Abstract

A search for supersymmetric particles produced in the vector boson fusion topology in proton-proton collisions is presented. The search targets final states with one or zero leptons, large missing transverse momentum, and two jets with a large separation in rapidity. The data sample corresponds to an integrated luminosity of 35.9 fb${}^{-1}$ of proton-proton collisions at $\sqrt{s}=$ 13 TeV collected in 2016 with the CMS detector at the LHC. The observed dijet invariant mass and lepton-neutrino transverse mass spectra are found to be consistent with the standard model predictions. Upper limits are set on the cross sections for chargino (${\tilde{\chi }}_1^{\pm }$) and neutralino (${\tilde{\chi }}_2^0$) production with two associated jets. For a compressed mass spectrum scenario in which the ${\tilde{\chi }}_1^{\pm }$ and ${\tilde{\chi }}_2^0$ decays proceed via a light slepton and the mass difference between the lightest neutralino ${\tilde{\chi }}_1^0$ and the mass-degenerate particles ${\tilde{\chi }}_1^{\pm }$ and ${\tilde{\chi }}_2^0$ is 1 (30) GeV, the most stringent lower limit to date of 112 (215) GeV is set on the mass of these latter two particles.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SUS-17-007 (CMS Public Pages)

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