Abstract

Polarized and unpolarized d+d..-->..n+ /sup 3/He fusion reaction cross sections in the center-of-mass energy region of 20-150 keV are calculated in a distorted-wave Born approximation. The calculated unpolarized cross sections and the anisotropy of the angular distributions are within 20% of the experimental data. The polarized cross sections are found to be --7.7% of the unpolarized ones despite the inclusion of the D-state component in /sup 3/He. This shows that the idea of a ''neutron-lean'' reactor may still be feasible. This result is consistent with the partial-wave analysis of the tensor analyzing power in the reaction d(d/sub pol/,p)t, but contrary to the findings of a recent resonating-group calculation.

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