Evaluation of modern {sup 3}He({alpha}, {gamma}){sup 7}Be data

In both the Sun and the early universe, the {sup 3}He({alpha}, {gamma}){sup 7}Be reaction plays a key role. The rate of this reaction is the least certain nuclear input needed to calculate both the primordial {sup 7}Li abundance in big-bang nucleosynthesis and the solar neutrino flux. Taking advantage of several recent highly precise experiments, we analyze modern {sup 3}He({alpha}, {gamma}){sup 7}Be data using a robust and minimally model-dependent approach capable of handling discrepant data sets dominated by systematic rather than statistical errors. We find S{sub 34}(0)=0.580{+-}0.043(0.054) keV b at the 68.3(95.4)% confidence level.