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

Abstract

Abstract The determination of scalar lepton and gaugino masses is an important part of the programme of spectroscopic studies of Supersymmetry at a high energy e + e − linear collider. In this article we present results of a study of the processes: e + e − → $ \widetilde{e}_R^{+}\widetilde{e}_R^{-} $ → e + e − $ \widetilde{\chi}_1^0\widetilde{\chi}_1^0 $ , e + e − → $ \widetilde{\mu}_R^{+}\widetilde{\mu}_R^{-} $ → μ + μ − $ \widetilde{\chi}_1^0\widetilde{\chi}_1^0 $ , e + e − → $ \widetilde{e}_L^{+}\widetilde{e}_L^{-} $ → e + e − $ \widetilde{\chi}_2^0\widetilde{\chi}_2^0 $ and e + e − → $ {{\widetilde{\nu}}_{\mathrm{e}}}{{\widetilde{\nu}}_{\mathrm{e}}} $ → e + e − $ \widetilde{\chi}_1^{+}\widetilde{\chi}_1^{-} $ in two Supersymmetric benchmark scenarios at $ \sqrt{s} $ =3 TeV and 1.4 TeV at CLIC. We characterize the detector performance, lepton energy resolution and boson mass resolution. We report the accuracy of the production cross section measurements and the $ {{\widetilde{e}}_{\mathrm{R}}} $ , $ {{\widetilde{\mu}}_{\mathrm{R}}} $ , $ {{\widetilde{\nu}}_{\mathrm{e}}} $ , $ \widetilde{\chi}_1^{\pm } $ , and $ \widetilde{\chi}_1^0 $ mass determinations, estimate the systematic errors affecting the mass measurement and discuss the requirements on the detector time stamping capability and beam polarization. The analysis accounts for the CLIC beam energy spectrum and the dominant beam-induced background. The detector performances are incorporated by full simulation and reconstruction of the events within the framework of the CLIC ILD CDR detector concept.