Probing the CP of the Higgs at an electron-electron Collider

Abstract

The sensitivity of various angular and energy distributions to the CP of a Higgs candidate are considered for the process $e^-e^- -> e^-e^-h$, where h is either a scalar or a pseudoscalar Higgs. This process may differ from the corresponding production at an $e^+e^-$ collider in the availability of both beams being polarized. Beam polarization enhances the sensitivity of the azimuthal distribution.