High Energy Physics Seminars

Search for supersymmetry in the final state of boosted hadronic Z Boson & missing transverse energy at CMS.

by Mr. Uttiya Sarkar (DHEP, TIFR)

Wednesday, May 8, 2019 from to (Asia/Kolkata)
at TIFR, Mumbai ( AG-66 )
Description
In this exciting time of searches for new physics at the LHC, the world’s most powerful accelerator, the majority of explorations have been focussed on supersymmetry. Especially, CMS is looking for signatures of simplified supersymmetric models in a wide variety of final states, which include our own search of pair-produced gluinos decaying hadronically to vector bosons, light-flavor jets, and missing transverse energy (MET). From the prediction of theorists, gluinos are expected to be produced at TeV energies, so they can give rise to final-state objects with high transverse momenta, leading to a boosted topology. We estimate contributions of potential backgrounds that also have similar topology, based on a new mass-shape fitting method. The MET shape in the mass sideband is used to validate the fit prediction in the signal region. In this talk, we discuss about the underlying motivation, search techniques, and latest status of our search for the pair-produced gluinos resulting in the fully hadronic final state of boosted Z boson and MET. We conclude by providing an estimation of how much one can exclude of the phase space for the specific compressed model of interest.