Alpha-alpha scattering at 38.5 MeV
Abstract
A measurement of the angular distribution of the scattering of alpha-particles by helium at 38.5 MeV is described. The c.m.s. cross-section is 110 mb/steradian at 90°, falling to a very sharp minimum of about 0.5 mb/steradian at 64°. Approximate calculations of the phase shifts show that ° 0 and ° 2 are large and δ 4 small: these results are in agreement with other evidence for levels of spin 4 at about 11 MeV and of spin 0 and 2 near to 19 MeV.
- Publication:
-
Nuclear Physics
- Pub Date:
- April 1957
- DOI:
- 10.1016/0029-5582(57)90109-8
- Bibcode:
- 1957NucPh...3..217B