Abstract
The continuum resonance spectrum of 5H ( 3H + n + n ) is investigated by use of the complex scaled hyperspherical adiabatic expansion method. The crucial 3H-neutron potential is obtained by switching off the Coulomb part from successful fits to 3He-proton experimental data. These two-body potentials must be expressed exclusively by operators conserving the nucleon–core mean field angular momentum quantum numbers. The energies E R and widths Γ R of the 1 / 2 + ground-state resonance and the lowest two excited 5 / 2 + - and 3 / 2 + -resonances are found to be ( 1.6 , 1.5 ) MeV, ( 2.8 , 2.5 ) MeV and ( 3.2 , 3.9 ) MeV, respectively. These results agree with most of the experimental data. The energy distributions of the fragments after decay of the resonances are predicted.
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