The new Seattle-TRIUMF 7Be(p,γ)8B S-factor determination


The new Seattle-TRIUMF 7Be(p,γ)8B S-factor determination

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

We present new measurements of the 7Be(p,γ)8B cross section from ‏‾Ecm = 116 to 2460 keV. Our new measurements lead to S17(0) = 22.1 ± 0.6(expt) ± 0.6(theor) eV b, where the central value is based on the theory of Descouvemont and Baye. We recommend a “best” value, S17(0) = 21.4 ± 0.5(expt) ± 0.6(theor) eV b, based on the mean of all modern direct measurements below the 1+ resonance.

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Publ.-Id: 8756