ELASTIC-SCATTERING OF POLARIZED HE-3 BY HE-3 AND EXCITATION IN BE-6 SYSTEM

Angular distributions of the polarization in the elastic scattering of 3He by 3He have been measured at eight energies between 18 and 33 MeV, corresponding to excitation of 6Be between 20.5 and 28 MeV. The measurements were made using the 33 MeV polarised 3He beam at the University of Birmingham Radial Ridge cyclotron and a small gas target. The data have been analysed in terms of real and complex phase shifts. The deduced phase shift energy dependence cannot be associated with a single isolated level in 6Be, however an application of the two-level R-matrix formula reveals some broad L = 3 structures around Ex = 25 MeV. © 1978.