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Test of Determination of (p,γ) Astrophysical S-Factors Using the Asymptotic Normalization Coefficients from Neutron Transfer Reactions |
| GUO Bing;LI Zhi-Hong;LIU Wei-Ping;BAI Xi-Xiang |
| China Institute of Atomic Energy, PO Box 275(46), Beijing 102413 |
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| Cite this article: |
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GUO Bing, LI Zhi-Hong, LIU Wei-Ping et al 2007 Chin. Phys. Lett. 24 2544-2546 |
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Abstract The asymptotic normalization coefficients (ANCs) for the virtual decay 17O→16O+n are derived from the angular distributions of the 16O(d,p)17O reaction leading to the ground and first excited states of 17O, respectively, using the
distorted wave Born approximation and the adiabatic wave approximation.
The ANCs of 17F are then extracted according to charge symmetry of mirror nuclei and used to calculate the astrophysical S-factors of 16O(p,γ)17F leading to the first two states of 17F. The present results are in good agreement with those from the direct measurement. This provides a test of this indirect method to determine direct astrophysical S-factors of (p,γ) reaction. In addition, the S-factors at zero energy for the direct captures to the ground and first excited states of 17F are presented, without the uncertainty associated with the extrapolation from higher energies in direct measurement.
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| Keywords:
21.10.Jx
25.40.Lw
25.60.Je
26.30.+k
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Received: 05 June 2007
Published: 16 August 2007
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