7Be(p,gamma)8B astrophysical S factor from precision cross section measurements.
We measured the 7Be(p,gamma)8B cross section from E(c.m.) = 186 to 1200 keV, with a statistical-plus-systematic precision per point of better than +/-5%. All important systematic errors were measured including 8B backscattering losses. We obtain S17(0) = 22.3+/-0.7(expt)+/-0.5(theor) eV b from our data at E(c.m.)< or =300 keV and the theory of Descouvemont and Baye.
Junghans
A R
AR
Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA.
Mohrmann
E C
EC
Snover
K A
KA
Steiger
T D
TD
Adelberger
E G
EG
Casandjian
J M
JM
Swanson
H E
HE
Buchmann
L
L
Park
S H
SH
Zyuzin
A
A