Supersymmetric signals in electron - photon collisions

Jan, 1992
13 pages
Published in:
  • Nucl.Phys.B 383 (1992) 45-57
  • Published: 1992
e-Print:
Report number:
  • LMU-92-2-REV,
  • MPI-PH-92-14-REV

Citations per year

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Abstract:
Associated selectron-neutralino production in the process e γe~ χ~ 0e~-\gamma\to\tilde e~-\tilde\chi~0 provides a striking supersymmetric signal: events with a single high pp_\perp electron and otherwise only invisible particles. For e γe~-\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 e~ +e~ e~+e~-\to\tilde e~+\tilde e~- and e e e~ e~ 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 γe Z 0e~-\gamma\to e~-Z~0 and W νW~-\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.
Note:
  • Revised version
  • photon electron: inelastic scattering
  • inelastic scattering: photon electron
  • supersymmetry: search for
  • postulated particle: selectron
  • sparticle: neutral particle
  • sparticle: electroproduction
  • electroproduction: sparticle
  • sparticle: associated production
  • associated production: sparticle
  • sparticle: pair production