Indirect Study of the 2H(d,p)3H and 2H(d,n)3He Reactions at Astrophysical Energies via the Trojan Horse Method

The 2H(d,p)3H and 2H(d,n)3He reactions have been indirectly studied by means of the Trojan Horse Method applied to the quasi-free 2H(3He, p3H)1H 2H(3He, n3He)1H reaction at 18 MeV of beam energy. This is the first experiment where the spectator (here 1H) has been detected in coincidence with the charged participant, avoiding the limitations of standard neutron detectors. The d − d relative energy has been measured from 1.5 MeV down to 2 keV, at center of mass angles from 40° to 170°. Indirect angular distributions are compared with the direct behaviour in the overlapping regions.