Reaching towards higher masses of supersymmetric particles decaying to tau leptons
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This thesis presents an optimisation of the search for SUSY in final states with one tau lepton, jets and missing transverse energy. The SUSY model considered is mSUGRA with the parameter values: A_0 = -2m0, tan(beta) = 30 and sign(mu) = + . The event selection is optimised for maximal sensitivity to mSUGRA in the low m0, high m1/2 region of the mass plane. The result of the optimised analysis is interpreted in the mSUGRA model and a limit in the (m0, m1/2) plane is obtained. Values of m1/2 up to 640 GeV are excluded for low m0 and 300 GeV for high m0 ( between 2000 and 5400 GeV).