Nearside-farside analysis of elastic scattering of polarized 3He

An exact decomposition of the scattering amplitudes into the nearside and farside components has been performed for the elastic scattering of 33 MeV ³He particles by nuclei. Calculations have been carried out for ⁴⁰Ca, ⁵⁴Fe, ⁸⁹Y, ^90,91Zr, ^207,208Pb and ²⁰⁹Bi and compared with the available cross section and polarization data. In particular the behaviour of the vector analysing powers is examined. Calculations of the interference between the nearside and farside components demonstrate that the interference plays a significant role in certain mass/energy regions. Regions where the scattering is dominated by the nearside component are discussed.