Transfer/Breakup Modes in the 6He+209Bi Reaction Near and Below the Coulomb Barrier

Aguilera, E. F.; Kolata, J. J.; Nunes, F. M.; Becchetti, F. D.; DeYoung, P. A.; Goupell, M.; Guimaraes, V.; Hughey, B.; Lee, M. Y.; Lizcano, D.; Martinez-Quiroz, E.; Nowlin, A.; O'Donnell, T. W.; Peaslee, G. F.; Peterson, D.; Santi, P.; White-Stevens, R.

Transfer/Breakup Modes in the 6He+209Bi Reaction Near and Below the Coulomb Barrier

Authors

Description

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/breakup channel is the doorway state that accounts for the previously observed large sub-barrier fusion enhancement in this system.
4 pages; 3 figures