Asymptotic normalization coefficients for 8B->7Be+p from a study of 8Li->7Li+n

Details Asymptotic normalization coefficients for 8B->7Be+p from a study of 8Li->7Li+n Asymptotic normalization coefficients for 8B->7Be+p from a study of 8Li->7Li+n

2003-04-21

arxiv.org/abs/nucl-ex/0304016v1

Phys.Rev. C67 (2003) 062801

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 3 figures, 2 tables

Scientific paper

10.1103/PhysRevC.67.062801

Asymptotic normalization coefficients (ANCs) for 8Li->7Li+n have been extracted from the neutron transfer reaction 13C(7Li,8Li)12C at 63 MeV. These are related to the ANCs in 8B->7Be+p using charge symmetry. We extract ANCs for 8B that are in very good agreement with those inferred from proton transfer and breakup experiments. We have also separated the contributions from the p_1/2 and p_3/2 components in the transfer. We find the astrophysical factor for the 7Be(p,gamma)8B reaction to be S_17(0)=17.6+/-1.7 eVb. This is the first time that the rate of a direct capture reaction of astrophysical interest has been determined through a measurement of the ANCs in the mirror system.

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