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APS » Journals » Phys. Rev. Lett. » Volume 81 » Issue 21
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Phys. Rev. Lett. 81, 4580–4583 (1998)

Sub-barrier Fusion of 6He with 209Bi

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J. J. Kolata1, V. Guimarães1, D. Peterson1, P. Santi1, R. White-Stevens1, P. A. DeYoung2, G. F. Peaslee3, B. Hughey2, B. Atalla2, M. Kern2, P. L. Jolivette2, J. A. Zimmerman5, M. Y. Lee4, F. D. Becchetti4, E. F. Aguilera6, E. Martinez-Quiroz6, and J. D. Hinnefeld7
1Physics Department, University of Notre Dame, Notre Dame, Indiana 46556
2Physics Department, Hope College, Holland, Michigan 49422
3Chemistry Department, Hope College, Holland, Michigan 49422
4Physics Department, University of Michigan, Ann Arbor, Michigan 48109
5Chemistry Department, University of Michigan, Ann Arbor, Michigan 48109
6Departamento del Accelerador, Instituto Nacional de Investigaciones Nucleares, A.P. 18-1027, C.P. 11801, Distrito Federal, Mexico
7Physics Department, Indiana University–South Bend, South Bend, Indiana 46615

Received 6 July 1998; published in the issue dated 23 November 1998

The fusion of 6He with a 209Bi target has been studied at energies near to and below the Coulomb barrier. Despite the weak binding of the valence neutrons in 6He, little evidence is found for suppression of fusion due to projectile breakup. Instead, a large enhancement of sub-barrier fusion is observed. It is suggested that this enhancement may arise from coupling to positive Q value neutron transfer channels, resulting in “neutron flow” between the projectile and the target.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.4580
DOI:
10.1103/PhysRevLett.81.4580
PACS:
25.60.Pj, 25.70.Jj
 
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