7Be(p,gamma)8B astrophysical S-factor from precision cross section measurements

A. R. Junghans; A. Zyuzin; E. C. Mohrmann; E. G. Adelberger; H. E. Swanson; J.-M. Casandjian; K. A. Snover; L. Buchmann; S. H. Park; T. D. Steiger

arxiv: nucl-ex/0111014 · v1 · submitted 2001-11-17 · ⚛️ nucl-ex · astro-ph

7Be(p,gamma)8B astrophysical S-factor from precision cross section measurements

A. R. Junghans , E. C. Mohrmann , K. A. Snover , T. D. Steiger , E. G. Adelberger , J.-M. Casandjian , H. E. Swanson , L. Buchmann

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S. H. Park A. Zyuzin

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classification ⚛️ nucl-ex astro-ph

keywords crossgammameasuredprecisionsectionastrophysicalbackscatteringbaye

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We measured the 7Be(p,gamma)8B cross section from E_cm = 186 to 1200 keV, with a statistical-plus-systematic precision per point of better than +- 5%. All important systematic errors were measured including 8B backscattering losses. We obtain S_17(0) = 22.3 +- 0.7(expt) +- 0.5(theor) eV-b from our data at E_cm <= 300 keV and the theory of Descouvemont and Baye.

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7Be(p,gamma)8B astrophysical S-factor from precision cross section measurements

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