${}^{7}B e (p, γ) {}^{8}B$ AstrophysicalSFactor from Precision Cross Section Measurements

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14 January 2002

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 88 (4) , 041101
https://doi.org/10.1103/physrevlett.88.041101

Abstract

We measured the

^{7} Be (p, γ)^{8} B

cross section from

{\bar{E}}_{c . m .} = 186

to 1200 keV, with a statistical-plus-systematic precision per point of better than

\pm 5 %

. All important systematic errors were measured including

^{8} B

backscattering losses. We obtain

S_{17} (0) = 22.3 \pm 0.7 (expt) \pm 0.5 (theor) eV b

from our data at

{\bar{E}}_{c . m .} \leq 300 keV

and the theory of Descouvemont and Baye.

Keywords

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