Search for Supersymmetry in Vector Boson Fusion Topology Using Proton–Proton Collision Data at the LHC

Abstract

A search for Supersymmetry with Vector Boson Fusion (VBF) topology is performed using proton-proton collision data at 8 TeV collected with CMS detector at the LHC. The VBF processes offer a promising avenue at the LHC to study the non-colored sectors of supersymmetric extensions of the Standard Model where other searches have limited sensitivity. Final states consisting of at least two leptons, large missing transverse momentum, and two jets with a large pseudorapidity are expected in pair-production of charginos and neutralinos. The observed dijet invariant mass spectrum after the final selections is found to be consistent with the expected standard model predictions, hence the upper limits are set for the production of charginos and neutralinos with two associated jets, assuming the supersymmetric partner of the tau lepton to be the lightest slepton and the lightest slepton to be lighter than the charginos. The Run2 of LHC machine has allowed us to naturally extend this search to 13 TeV data where we utilize the methodology developed for 8 TeV search along with newly implemented VBF-Dijet Trigger. This is expected to improve the search sensitivity for compressed-mass SUSY spectra at high-luminosity.

Priyanka Kumari, Amandeep Kaur Kalsi, Nitish Dhingra, Vipin Bhatnagar and J.B. Singh on behalf of the CMS Collaboration.