Calculation of the d(t,n)α reaction total cross-section in the incident deuteron energy region from threshold to 5 MeV

The d(t,n)α reaction total cross-section in the incident deuteron energy region from threshold to 5 MeV is calculated in the framework of many-channel variant of the resonating-group method algebraic version with the simplest internal wave functions of clusters. Contributions of different partial amplitudes are separated. It is shown that the d(t, n)α reaction calculated total cross-section agrees closely with the experimental data up to deuteron breakup threshold. At the higher energies deuteron breakup channels must be taken into account