Abstract
The reaction plays an important role in determining the high energy solar neutrino flux and in understanding the abundances of primordial . This Letter reports a new precision measurement of the cross sections of this direct capture reaction, determined by measuring the ensuing activity in the region of to 950 keV. Various recent theoretical fits to our data result in a consistent extrapolated value of .
- Received 16 July 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.262503
©2004 American Physical Society