Phys. Rev. Lett. 84, 5058 - 5061 (2000)Transfer and/or Breakup Modes in the 6He+209Bi Reaction near the Coulomb Barrier |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1974: |
E. F. Aguilera1, J. J. Kolata2, F. M. Nunes3,4, F. D. Becchetti5, P. A. DeYoung6, M. Goupell6, V. Guimarães2, B. Hughey6, M. Y. Lee5, D. Lizcano1, E. Martinez-Quiroz1, A. Nowlin6, T. W. O'Donnell5, G. F. Peaslee7, D. Peterson2, P. Santi2, and R. White-Stevens2
1Departamento del Acelerador, Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, C.P. 11801, Distrito Federal Mexico
2Physics Department, University of Notre Dame, Notre Dame, Indiana 46556
3Centro Multidisciplinar de Astrofísica, Instituto Superior Técnico, 1096 Lisboa-Codex, Portugal
4Department of Science and Technology, Universidade Fernando Pessoa, 4200 Porto, Portugal
5Physics Department, University of Michigan, Ann Arbor, Michigan 48109
6Physics Department, Hope College, Holland, Michigan 49422
7Chemistry Department, Hope College, Holland, Michigan 49422
Received 19 November 1999
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.
©2000 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v84/p5058
DOI: 10.1103/PhysRevLett.84.5058
PACS: 25.60.Gc, 25.60.Dz, 25.60.Je, 27.20.+n
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