Supersymmetric Signals in Electron-Photon Collision

Abstract

Associated selectron-neutralino production in the process $e^{-}\gamma \to {\tilde{e}}^{-}{\tilde{\chi }}^0$ provides a striking supersymmetric signal: events with a single high $p_{\perp }$ electron and otherwise only invisible particles. For $e^{-}\gamma$ collisions obtained at high energy linear colliders through back-scattering of a laser beam, this reaction is shown to be complementary to selectron pair production in the processes $e^{+}{e}^{-}\to {\tilde{e}}^{+}{\tilde{e}}^{-}$ and $e^{-}{e}^{-}\to {\tilde{e}}^{-}{\tilde{e}}^{-}$, and to be a probe of heavy selectrons beyond the kinematical limit of pair production. The standard model background from $e^{-}\gamma \to e^{-}{Z}^0$ and $W^{-}\nu$ is studied and substantially reduced by rapidity and transverse momentum cuts. The minimum required integrated luminosities for observing this \susic\ signal are given as functions of several model parameters and collider energies.

15 pages

Cited by in corpus (18)

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• Electron-Electron Scattering as a Probe of Anomalous Gauge Couplings
• Production of the Lightest Supersymmetric Particle in Electron-Photon Collisions
• Production of Heavy Selectrons in Electron-Photon Collisions
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• Tests of gauge boson couplings in polarized $e^{-}\gamma$ collisions
• Signals of anomaly mediated supersymmetry breaking in an e^- gamma collider
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• Slepton Oscillation at e-gamma Colliders
• Single production of the gauge boson $W$ via polarized $e^{-}\gamma$ collisions in the littlest Higgs model
• Polarization Effects in Scalar Lepton Production at High Energy $\gamma \gamma$ Colliders
• Distinguishing between MSSM and NMSSM with eγScattering