CONTRIBUTION OF ORBITING TO DIFFERENTIAL CROSS-SECTIONS

An analysis of the differential cross section in the presence of orbiting is given. It is shown that the Regge representation of the scattering amplitude is particularly useful for such a case. The orbiting oscillations in the cross section of H-Hg are very pronounced and they can be described by only a few Regge poles. The velocity averaging can be done with ease and in the presence of orbiting can substantially change the differential cross section. © 1979 The American Physical Society.