Resonant diproton spectrum measured using the reactionH2(d,

Abstract

According to the kinematic analysis two sets of laboratory angle pairs, coplanar and noncoplanar, were selected and the coincidence spectra of two protons outgoing from H(d, p)2n reaction induced by 15.7 MeV deuteron were measured. The resonant spectrum of the diproton has been obtained. The peak, mean, and width of the spectrum are 0.43+0.09 MeV, 0.45+0.05 MeV, and 0. 14+0.13 MeV, respectively. The lifetime of the state is estimated to be (4.8+4.3) X 10 " s.