Cr. Howell et al., PROBING THE 3-NUCLEON FORCE USING NUCLEON-DEUTERON BREAKUP REACTIONS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 99(1-4), 1995, pp. 316-319
Results of our recent kinematically complete cross-section measurement
s of the space-star and coplanar-star configurations in n-d breakup at
13.0 MeV are reported. The experimental setup and details of the anal
ysis are described. The new data for the space-star configuration are
in good agreement with previous n-d data but differ significantly from
both ''exact'' n-d calculations and p-d data. In contrast, the new co
planar-star data are in fair agreement with the calculations but are i
n gross disagreement with previous n-d data. The implications of these
data for three-nucleon forces are discussed.