S17(0) determined from the Coulomb breakup of 83 MeV /nucleon 8B.
A kinematically complete measurement was made of the Coulomb dissociation of 8B nuclei on a Pb target at 83 MeV/nucleon. The cross section was measured at low relative energies in order to infer the astrophysical S factor for the 7Be(p,gamma)8B reaction. A first-order perturbation theory analysis including E1, E2, and M1 transitions was employed to extract the E1 strength relevant to neutrino-producing reactions in the solar interior. By fitting the measured cross section from E(rel) = 130 to 400 keV, we find S17(0) = 17.8(+1.4)(-1.2) eV b.
Davids
B
B
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA. davids@kvi.nl
Anthony
D W
DW
Aumann
T
T
Austin
S M
SM
Baumann
T
T
Bazin
D
D
Clement
R R
RR
Davids
C N
CN
Esbensen
H
H
Lofy
P A
PA
Nakamura
T
T
Sherrill
B M
BM
Yurkon
J
J