WELL DEPTHS OF XEF- AND XECL- FROM DIFFERENTIAL SCATTERING MEASUREMENTS

Elastic differential cross section measurements were performed for F- + Xe and Cl- + Xe in an energy range of 250-500 eV and in an angular range of 0-6 mrad. In contrast to the case of C1- on Xe, the rainbow structure in the cross section for F- on Xe was well resolved. From the measurements the well depth of XeF- has been determined to be 0.28 ± 0.04 eV, while for XeC1- the well depth should be less than 0.14 eV. © 1979.