Ov. Bochkarev et al., SPECTRUM OF NEUTRONS FROM THE 3-PARTICLE DECAY OF HE-6(2+) AND ITS STRUCTURE, Physics of atomic nuclei, 57(8), 1994, pp. 1281-1291
The energy spectrum of neutrons from the He-6(2+) --> alpha + n + n de
cay is measured in an exclusive experiment. This nucleus is populated
in the Li-7(d, He-3)He-6 reaction at E(d) = 23 MeV. The shape of the
neutron spectrum reflects the strong momentum correlations of decay pr
oducts. The data analysis is carried out using the method of hypersphe
rical harmonics. It is shown that the observed correlations are manife
stations of the specific three-particle effect in the structure of the
decaying nucleus.