corner
corner
APS » Journals » Phys. Rev. Lett. » Volume 82 » Issue 7
< Previous Article | Next Article >

Phys. Rev. Lett. 82, 1395–1398 (1999)

Fusion versus Breakup: Observation of Large Fusion Suppression for 9Be+208Pb

Download: PDF (365 kB) Buy this article Export: BibTeX or EndNote (RIS)

M. Dasgupta1, D. J. Hinde1, R. D. Butt1, R. M. Anjos2, A. C. Berriman1, N. Carlin3, P. R. S. Gomes2, C. R. Morton1, J. O. Newton1, A. Szanto de Toledo3, and K. Hagino4
1Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia
2Instituto de Física, Universidade Federal Fluminense, Av. Litoranea, Niterói, RJ, 24210-340, Brazil
3Instituto de Física, Universidade de Sao Paulo, Caixa Postal 66318, 05315-970 Sao Paulo, S.P., Brazil
4Institute for Nuclear Theory, Department of Physics, University of Washington, Seattle, Washington 98915

Received 20 November 1998; published in the issue dated 15 February 1999

Complete fusion excitation functions for 9Be+208Pb have been measured to high precision at near barrier energies. The experimental fusion barrier distribution extracted from these data allows reliable prediction of the expected complete fusion cross sections. However, the measured cross sections are only 68% of those predicted. The large cross sections observed for incomplete fusion products support the interpretation that this suppression of fusion is caused by 9Be breaking up into charged fragments before reaching the fusion barrier. Implications for the fusion of radioactive nuclei are discussed.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.1395
DOI:
10.1103/PhysRevLett.82.1395
PACS:
25.70.Jj, 25.70.Mn
 
< Previous Article | Next Article >