Signals of spontaneous R parity breaking at LEP and at a linear collider

Abstract

We study the production of neutralinos and charginos at LEP and at a linear collider in the case of spontaneously broken R-parity. We first investigate the constraints on the single neutralino and chargino production from the LEP 1 experiments, and then we consider the production at LEP 2 and at a linear collider. We concentrate on the supersymmetric $SU(2{)}_L\times SU(2{)}_R\times U(1{)}_{B-L}$ model, where the spontaneous R-parity breaking is inevitable and is associated with the breaking of the LR-symmetry.

21 pages, 6 figures, latex, uses epsf