The ${}^6\mathrm{Li}(p,\alpha {)}^3\mathrm{He}$ reaction has been studied from $E_{\mathrm{c}.\mathrm{m}.\mathrm{}}=2.4\mathrm{}\mathrm{MeV}$ down to astrophysical energies by means of the indirect Trojan horse method applied to the ${}^2\mathrm{H}{(}^6\mathrm{Li},\alpha$ ${}^3\mathrm{He})$ n three-body reaction performed at an incident energy of 25 MeV. Coincidence spectra measured in a kinematically complete experiment show the presence of the quasifree ${}^6\mathrm{Li}-p$ process. The excitation function for this process was extracted from the three-body reaction cross section at low neutron momentum and compared with the behavior of the free two-body reaction cross section.

• Received 19 November 2002

DOI:https://doi.org/10.1103/PhysRevC.67.065803