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Phys. Rev. C 72, 034606 (2005) [8 pages]

Elastic scattering of the proton drip-line nucleus 17F

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J. C. Blackmon1, F. Carstoiu2,3, L. Trache2, D. W. Bardayan1, C. R. Brune4, C. A. Gagliardi2, U. Greife5, C. J. Gross1, C. C. Jewett5, R. L. Kozub6, T. A. Lewis1, J. F. Liang1, B. H. Moazen6, A. M. Mukhamedzhanov2, C. D. Nesaraja1,6, F. M. Nunes7, P. D. Parker8, L. Sahin9, J. P. Scott1,6, D. Shapira1, M. S. Smith1, J. S. Thomas10, and R. E. Tribble2
1Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
2Cyclotron Institute, Texas A&M University, College Station, Texas 77843-3366, USA
3National Institute for Physics and Nuclear Engineering “Horia Hulubei,” P.O. Box MG-6, RD-76900, Bucharest-Magurele, Romania
4Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
5Department of Physics, Colorado School of Mines, Golden, Colorado 80401, USA
6Physics Department, Tennessee Technological University, Cookeville, Tennessee 38505, USA
7National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
8A. W. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06511, USA
9Department of Physics, Dumlupinar University, Kutahya, Turkey 43100
10Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903, USA

Received 19 May 2005; published 26 September 2005

Precision data have been obtained for the elastic scattering of 17F on 12C and 14N at 10 MeV/nucleon to clarify the reaction mechanism for loosely bound nuclei at low energies and to assess the validity of a double-folding procedure to predict optical model potentials for use in indirect methods for nuclear astrophysics. The double-folding procedure incorporates density and energy-dependent effective nucleon-nucleon interactions with realistic densities consistent with experimentally determined asymptotic normalization coefficients. The derived potentials provide an excellent description of the data and point to a complete dominance of absorption at the barrier. A semiclassical analysis in terms of multireflection barrier–internal barrier series expansion of the scattering amplitude shows that only the barrier component survives in the scattering process, pointing to the peripheral character of the reactions.


©2005 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.72.034606
DOI: 10.1103/PhysRevC.72.034606
PACS: 25.60.Bx, 24.10.-i, 25.60.Dz, 25.60.Gc

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