Search for Supersymmetry in the Vector Boson Fusion topology in proton-proton collisions at $\sqrt{s}=8$ TeV

The first search for supersymmetry in the vector-boson fusion topology is presented. The search targets final states with at least two leptons, large missing transverse momentum, and two jets with a large separation in rapidity. The data sample corresponds to an integrated luminosity of 19.7 fb1 of proton-proton collisions at √ s = 8 TeV collected with the CMS detector at the CERN LHC. The observed dijet invariant mass spectrum is found to be consistent with the expected standard model prediction. Upper limits are set on the cross sections for chargino and neutralino production with two associated jets, assuming the supersymmetric partner of the lepton to be the lightest slepton and the lightest slepton to be lighter than the charginos. For a so-called compressed-mass-spectrum scenario in which the mass difference between the lightest supersymmetric particle χ̃1 and the next lightest, massdegenerate, gaugino particles χ̃2 and χ̃1 is 50 GeV, a mass lower limit of 170 GeV is set for these latter two particles. DOI: https://doi.org/10.1007/JHEP11(2015)189 Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-122748 Journal Article Published Version Originally published at: CMS Collaboration; Khachatryan, V; Sirunyan, A; Tumasyan, A; et al (2015). Search for supersymmetry in the vector-boson fusion topology in proton-proton collisions at √ s = 8 TeV. Journal of High Energy Physics:189. DOI: https://doi.org/10.1007/JHEP11(2015)189 J H E P 1 1 ( 2 0 1 5 ) 1 8 9 Published for SISSA by Springer Received: August 30, 2015 Revised: October 21, 2015 Accepted: October 28, 2015 Published: November 27, 2015 Search for supersymmetry in the vector-boson fusion topology in proton-proton collisions at √ s = 8TeV The CMS collaboration E-mail: cms-publication-committee-chair@cern.ch Abstract: The first search for supersymmetry in the vector-boson fusion topology is presented. The search targets final states with at least two leptons, large missing transverse momentum, and two jets with a large separation in rapidity. The data sample corresponds to an integrated luminosity of 19.7 fb−1 of proton-proton collisions at √ s = 8 TeV collected with the CMS detector at the CERN LHC. The observed dijet invariant mass spectrum is found to be consistent with the expected standard model prediction. Upper limits are set on the cross sections for chargino and neutralino production with two associated jets, assuming the supersymmetric partner of the τ lepton to be the lightest slepton and the lightest slepton to be lighter than the charginos. For a so-called compressed-mass-spectrum scenario in which the mass difference between the lightest supersymmetric particle χ̃1 and the next lightest, mass-degenerate, gaugino particles χ̃2 and χ̃ ± 1 is 50 GeV, a mass lower limit of 170 GeV is set for these latter two particles. The first search for supersymmetry in the vector-boson fusion topology is presented. The search targets final states with at least two leptons, large missing transverse momentum, and two jets with a large separation in rapidity. The data sample corresponds to an integrated luminosity of 19.7 fb−1 of proton-proton collisions at √ s = 8 TeV collected with the CMS detector at the CERN LHC. The observed dijet invariant mass spectrum is found to be consistent with the expected standard model prediction. Upper limits are set on the cross sections for chargino and neutralino production with two associated jets, assuming the supersymmetric partner of the τ lepton to be the lightest slepton and the lightest slepton to be lighter than the charginos. For a so-called compressed-mass-spectrum scenario in which the mass difference between the lightest supersymmetric particle χ̃1 and the next lightest, mass-degenerate, gaugino particles χ̃2 and χ̃ ± 1 is 50 GeV, a mass lower limit of 170 GeV is set for these latter two particles.