Bottom-Strange Associated Production at High Energy $e^{+}{e}^{-}$ Colliders in Standard Model

Abstract

We investigate the flavor changing neutral current bsV(V=$\gamma$,Z) couplings in the production vertex for the process $e^{+}{e}^{-}\to b\bar{s}or\bar{b}s$ in the standard model. The precise calculations keeping all quark masses non-zero are carried out. Production cross sections are found to be the order of $10^{-3}$ fb at LEP II and the order of $10^{-1}$ fb when center-of-mass energy is near the mass of neutral gauge boson Z.

Comments: 15 pages including 1 ps and 3 eps figures