A measurement of the cross sections for the reaction d${+}^3$He${\to }^3$He+p+n has been performed in a kinematical configuration allowing for the formation of the ${}_{}{}^4{}_{}{}^{}\mathrm{Li}$ ground state. The modifications of the resonance parameter due to the presence of the neutron have been investigated, together with the importance of a quasifree scattering mechanism. The resonance shift found is of the same order of magnitude as that predicted by recent calculations including three body forces. The width, however, is much smaller than suggested by an analysis of p${+}^3$He elastic scattering.

• Received 22 September 1989

DOI:https://doi.org/10.1103/PhysRevC.42.448