Oscillator spacing and the probability for the recoilless Λ-production in nuclei
The relative contribution of the recoilless and quasifreeΛ-production in the (K−,π−) strangeness exchange reaction in nuclei is estimated by using the nuclear Debye-Waller factor. The expressions for theΛ-oscillator spacing ħωΛ needed for such an estimate are derived by means of procedures which lead to quite simple formulae for ħωΛ as function of the mass number and are useful in obtaining improved results.