Search Results (2 total)

Reaction products from the interaction of ⁶He with ²⁰⁹Bi have been measured at energies near the Coulomb barrier. A ⁴He group of remarkable intensity, which dominates the total reaction cross section, has been observed. The angular distribution of the group suggests that it results primarily from a direct nuclear process. It is likely that this transfer and/or breakup channel is the doorway state that accounts for the previously observed large sub-barrier fusion enhancement in this system.

Correlation functions for p-p, p-d, p-α, d-α, and α-α were measured for the ¹⁶O+²⁷Al system at a beam energy of 72 MeV. The detector array was centered at laboratory angle of 20°. Compared to published data obtained at larger scattering angles, an unexpected dependence on angle is seen for the p-p channel. The observed anticorrelation is stronger at more forward angles, which suggests that correlation functions are sensitive to the specific reaction mechanisms producing the light-charged particles.