Asymptotic normalization coefficients for B-10->Be-9+p
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Date
1997
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
The differential cross sections for the reactions Be-9(B-10, B-10)Be-9 and Be-9(B-10,Be-9)B-10 have been measured at an incident energy of 100 MeV. The elastic scattering data have been used to determine the optical model parameters for the Be-9+B-10 system at this energy. These parameters are then used in distorted-wave Born approximation (DWBA) calculations to predict the cross sections of the Be-9(B-10,Be-9)B-10 proton exchange reaction, populating the ground and low-lying states in B-10. By normalizing the theoretical DWBA proton exchange cross sections to the experimental ones, the asymptotic normalization coefficients (ANC's), defining the normalization of the tail of the B-10 bound state wave functions in the two-particle channel Be-9+p, have been found. The ANC for the virtual decay B-10(g.s.)-->Be-9+p will be used in an analysis of the B-10(Be-7,B-8)Be-9 reaction to extract the ANC's for B-8-->Be-7+p. These ANC's determine the normalization of the Be-7(p,gamma)B-8 radiative capture cross section at very low energies, which is crucially important for nuclear astrophysics.
Description
Journals published by the American Physical Society can be found at http://publish.aps.org/
Keywords
ASTROPHYSICAL S-FACTOR, LOW ENERGIES, RADIATIVE-CAPTURE, VERTEX, CONSTANT, LIGHT-NUCLEI, SCATTERING, BE-7(P, Physics
Citation
A. M. Mukhamedzhanov, H. L. Clark, Carl A. Gagliardi, Y. W. Lui, L. Trache, Robert E. Tribble, H. M. Xu, X. G. Zhou, V. Burjan, J. Cejpek, V. Kroha and F. Carstoiu. Phys.Rev.C 56 1302-1312 1997. "Copyright (1997) by the American Physical Society."