Positron scattering from krypton and xenon

Elastic Positron Scattering from Krypton and Xenon in the Relativistic Polarized Orbital Approximation

“…1a and 1b we compare our relativistic differential cross-sections for elastic e+-Kr scattering with results of very recent measurements of Dou et al [12] and theoretical values obtained by this group using non-relativistic phase shifts of McEachran et al [15]. It is seen that although present results generally agree with experimental data with► respect to the shapes, the results based on the phase shifts of McEachran et al better predict locations of cross-sections minima.…”

“…2 and 3 our results of the total elastic cross-sections for Kr and Xe with the calculations of McEachran et al [15] and Sin Fai Lam [16]. Theoretical results of Massey et al [13] and Basu et al [17], for Kr, and Schrader [14], for Kr and Ye, were obtained using semi-empirical potentials and are not shown.…”

“…Theoretically, Massey et a1. [13], Schrader [14], McEachran et al [15], Sin Fai Lam [16] and Basu et a1. [17] investigated the low-energy total elastic cross-section.…”

“…On the theoretical side, calculations of the total elastic scattering include those of Schrader [14], McEachran et al [15] and Sin Fai Lam [16]. The differential cross-sections for elastic scattering at intermediate energies were reported by Hasenburg et al [24].…”

“…So far, the non-relativistic polarized orbital calculations of McEachran et al [15] seemed to be the most soplistfcated attempt to describe the elastic positron scattering from both targets. One might suppose that inclusion of the relativistic effects in the description of the considered processes should improve the quite satisfactory agreement between theoretical results of this group and some of the experimental data.…”