The 7.4-Mev State ofLi7

Abstract

Blair and Holland have reported preliminary measurements of the cross section for the ${\mathrm{Li}}^6(n,\alpha )$ reaction as a function of the neutron energy. Roberts et al. have measured the angular distribution of the tritons for a neutron energy of 270 kev. Assuming that the nonresonance part of the cross section is due entirely to $s$-neutrons and that there is no accidental degeneracy of the resonance state, this state is shown to have spin $\frac{3}{2}$. Experiments which might test the assumptions are discussed.