A Study of e+e- -> H0A0 -> bbbb at 3 TeV at CLIC

Abstract

The precise determination of the masses of the CP-odd and -even heavy Higgs bosons is an important part of the study of Supersymmetry and its relation with cosmology through dark matter. This note presents a determination of the A 0 mass with the e + e − → H 0 A 0 → b bb b process for a dark matter motivated cMSSM scenario with M A = 1141 GeV at CLIC. The analysis is performed with full simulation and reconstruction at √ s=3 TeV accounting for beamstrahlung effects. SM and SUSY backgrounds are considered and the effect of the overlay of γγ → hadrons events on the signal is studied for various assumptions for the detector time-stamping capabilities. The di-jet mass resolution is improved by applying a kinematic fit. The A 0 mass can be determined with a statistical accuracy of ≃ 3-5 GeV for 3 ab −1 of statistics and 0 to 20 bunch crossings of γγ background integrated in one event, respectively.

Physics performance for scalar electron, scalar muon and scalar neutrino searches at $ \sqrt{s} $ = 3 TeV and 1.4 TeV at CLIC

“…After the reconstruction of all the particles in the event, the jet finder program FastJet [16] is used to reconstruct jets. The jet algorithm used is the inclusive anti-kt method [17]; The choice of cylindrical coordinates is optimal since the γγ → hadrons events are forward boosted, similarly to the underlying events in pp collisions for which the anti-kt clustering has been optimised. The R parameter cut value is 1 and the minimum jet energy required is 20 GeV at √ s = 3 TeV and 10 GeV at 1.…”