2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43989This talk presents the detection issues for the lightest slepton \tildeτ_1 at a future e+e- TeV collider given the dark matter constraints set on the SUSY mass spectrum by the WMAP results. Two methods for measuring its mass m_{\tildeτ_1} and the resulting precision on the dark matter density are briefly discussed in the SUSY mSUGRA scenario with R-parity conservation when the mass difference between m_{\tildeτ_1} and that of the lightest neutralino is small (a few GeV). The analysis is performed with TESLA parameters in both head-on and crossing angle modes.Talk given at the International Conference on Linear Colliders - Paris, France, April 19-23, 2004High Energy Physics - Phenomenologytext