Sparticle Production in Electron - Photon
نویسنده
چکیده
We explore the potential of electron-photon colliders to measure fundamental supersymmetry parameters via the processes ee ! ~ e~ 0 (selectron-neutralino) and ee ! ~ ~ ? (sneutrino-chargino). Given the ~ 0 and ~ ? masses from e + e ? and hadron collider studies, cross section ratios (?)==(+) for opposite photon helicities determine the ~ L , ~ e L and ~ e R masses, independent of the sparticle branching fractions. The diierence m 2 ~ L ? m 2 ~ e L measures M 2 W cos 2 in a model-independent way. The ~ e L and ~ e R masses test the universality of soft supersymmetry breaking scalar masses. The cross section normalizations provide information about the gaugino mixing parameters.
منابع مشابه
Sparticle Production in Electron - Photon Collisions
We explore the potential of electron-photon colliders to measure fundamental supersymmetry parameters via the processes eγ → ˜ e ˜ χ 0 (selectron-neutralino) and eγ → ˜ ν ˜ χ − (sneutrino-chargino). Given the˜χ 0 and˜χ − masses from e + e − and hadron collider studies, cross section ratios σ(γ −)/σ(γ +) for opposite photon helicities determine the˜ν L , ˜ e L and˜e R masses, independent of the ...
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