Abstract
The 3He(4He,γ) 7Be reaction plays an important role in determining the high energy solar neutrino flux and in understanding the abundances of primordial 7Li. This Letter reports a new precision measurement of the cross sections of this direct capture reaction, determined by measuring the ensuing 7Be activity in the region of Ec.m.=420 to 950 keV. Various recent theoretical fits to our data result in a consistent extrapolated value of S34(0)=0.53(2)(1) keV b.
| Original language | English |
|---|---|
| Article number | 262503 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 93 |
| DOIs | |
| Publication status | Published - 29 Dec 2004 |
| Externally published | Yes |