Low-energy cross section of the 7Be(p,g)8B solar fusion reaction from Coulomb dissociation of 8B

Details Low-energy cross section of the 7Be(p,g)8B solar fusion reaction from Coulomb dissociation of 8B Low-energy cross section of the 7Be(p,g)8B solar fusion reaction from Coulomb dissociation of 8B

2005-08-11

arxiv.org/abs/nucl-ex/0508014v2

Phys.Rev.C73:015806,2006

Physics

Nuclear Physics

Nuclear Experiment

14 pages including 16 figures, LaTeX, accepted for publication in Physical Review C. Minor changes in text and layout

Scientific paper

10.1103/PhysRevC.73.015806

Final results from an exclusive measurement of the Coulomb breakup of 8B into 7Be+p at 254 A MeV are reported. Energy-differential Coulomb-breakup cross sections are analyzed using a potential model of 8B and first-order perturbation theory. The deduced astrophysical S_17 factors are in good agreement with the most recent direct 7Be(p,gamma)8B measurements and follow closely the energy dependence predicted by the cluster-model description of 8B by Descouvemont. We extract a zero-energy S_17 factor of 20.6 +- 0.8 (stat) +- 1.2 (syst) eV b.

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