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Phys Rev Lett. 2000 May 29;84(22):5058-61. doi: 10.1103/PhysRevLett.84.5058.

Transfer and/or breakup modes in the 6He+209Bi reaction near the coulomb barrier.

Physical review letters

Aguilera, Kolata, Nunes, Becchetti, DeYoung, Goupell, Guimaraes, Hughey, Lee, Lizcano, Martinez-Quiroz, Nowlin, O'Donnell, Peaslee, Peterson, Santi, White-Stevens

Affiliations

  1. Departamento del Acelerador, Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, C.P. 11801, Distrito Federal Mexico.

PMID: 10990866 DOI: 10.1103/PhysRevLett.84.5058

Abstract

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.

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