Published February 7, 1983
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Journal Article
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Measurement of the 7Be(p, γ)8B reaction cross section at low energies
Chicago
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Abstract
The absolute total cross section for the reaction 7Be(p, γ)8B has been measured for Ec.m.=117-1230 keV by detecting the delayed α particles following the 8B β decay. Two independent methods have been used to determine the areal density of the 7Be target. The inferred zero-energy S factor from the present experiment is S17(0)=0.0216±0.0025 keV b. This value reduces the predicted 37Cl solar-neutrino capture rate by ∼25%.
Additional Information
©1983 The American Physical Society. Received 4 November 1982. It is a pleasure to thank R. Evans, M. Finn, W. Ray, Jr., M. Wahlgren, and the Dynamitron staff for assistance with the experiment. We would also like to acknowledge helpful discussions with J. Schiffer and R. Armani. This work was supported by the U.S. Department of Energy under Contract No. W-31-109-Eng-38.Files
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