Experimental study of 4H in the reactions 2H(t, p) and 3H(t, d)

The 4H resonance was investigated in the transfer reactions 2H(t, p)4H and 3H(t, d)4H using cryogenic liquid targets of deuterium and tritium and 58 MeV triton beam. The multidetector system with a large angular acceptance was used to measure the recoil protons and deuterons in coincidences with tritons or neutrons from the decay of 4H. Data analysis involved careful considerations made for the competing processes of final state interaction and quasifree scattering. The experimental data show a peak with resonance parameters <f>Eres=3.05±0.19</f> MeV and <f>Γobs=4.18±1.02</f> MeV. The pole of S-matrix corresponding to the physical values of energy and width, <f>E0=1.99±0.37</f> MeV and <f>Γ0=2.85±0.3</f> MeV, has been extracted. [Copyright &y& Elsevier]