The possibility to measure the time dependence of Bs0 - anti Bs0 oscillations using Fourier analysis

The possibility to observe the time evolution of B0s - anti B0s oscillations at a e+e- collider running at the Z0 resonance is discussed. Using a Fourier analysis the accessible frequency range is calculated as a function of the experimental resolution and the available statistics. It can be shown that these oscillations can be measured up to a range of Δm/Γ of about 8 with present technology (silicon vertex detectors) and luminosities which can be reached in the near future. (orig.)