Improved Nearside-Farside Method for Elastic Scattering Amplitudes

Abstract

A simple technique is described that provides an improved nearside-farside (NF) method for elastic scattering amplitudes. The technique, involving the novel resummation of a Legendre partial wave series, reduces the importance of unphysical contributions to NF subamplitudes, which can arise in more conventional NF decompositions. Detailed applications are made to a strong absorption model and to a ^{16}O + ^{16}O optical potential at E_{lab} = 145 MeV. We also discuss ^{16}O + ^{16}O at E_{lab} = 480, 704, 1120 MeV, and alpha + ^{12}C, alpha + ^{40}Ca, both at E_{lab} = 1370 MeV.

Comments: 12 pages, 6 figures included