arXiv:nucl-ex/0101010·v1·Nuclear Experiment
S17(0) Determined from the Coulomb Breakup of 83 MeV/nucleon 8B
B. Davids🇺🇸 · D. W. Anthony🇺🇸 · T. Aumann🇺🇸 · Sam M. Austin🇺🇸 · T. Baumann🇺🇸 · D. Bazin🇺🇸 · R. R. C. Clement🇺🇸 · C. N. Davids🇺🇸 · H. Esbensen🇺🇸 · P. A. Lofy🇺🇸 · T. Nakamura🇺🇸 · B. M. Sherrill🇺🇸 · J. Yurkon🇺🇸
Abstract
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 of the reaction dynamics 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 Erel = 130 keV to 400 keV, we find S17(0) = 17.8 (+1.4, -1.2) eV b.