EUROPHYSICS LETTERS, vol.50, no.1, pp.22-27, 2000 (SCI-Expanded)
The associated production of squarks and charginos in high-energy collisions of the polarized real photons and protons is discussed. We give the cross-sections for different initial beam polarizations and the polarization asymmetries which can be used to anticipate the masses of squarks and charginos.