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Phys. Rev. C 67, 014601 (2003) [6 pages]

Elastic scattering of 9Li and 11Li from 12C at 50 MeV per nucleon

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D. Peterson *, J. J. Kolata, P. Santi †, and J. von Schwarzenberg ‡
Physics Department, University of Notre Dame, Notre Dame, Indiana 46556-5670

D. Bazin and B. M. Sherrill
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321

Received 12 October 2002; published 6 January 2003

The elastic scattering of 9Li+12C and 11Li+12C has been measured at an incident energy of 50 MeV per nucleon over the angular range from 2° to 15° in the center-of-momentum frame. The elastic and inelastic reaction channels were cleanly separated in the critical forward-angle region where a predicted nearside/far-side interference minimum should be observed. The angular distributions obtained in this experiment are consistent with existing quasielastic measurements at 60 MeV per nucleon. In particular, the 9Li data display the interference minimum, while it is absent for 11Li. This difference is shown to occur in the elastic channel, and the results are discussed in terms of strongly enhanced surface refraction in the 11Li case.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.67.014601
DOI: 10.1103/PhysRevC.67.014601
PACS: 25.60.Bx, 25.70.Bc

* Present address: Chemistry Department, Oregon State University, Corvallis, OR 97331.
† Present address: National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824.
‡ Present address: Department of Nuclear Physics, University of Vienna, A-1090 Wien, Austria.

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