S17(0) Determined from the Coulomb Breakup of 83 MeV/nucleon 8B

Details S17(0) Determined from the Coulomb Breakup of 83 MeV/nucleon 8B S17(0) Determined from the Coulomb Breakup of 83 MeV/nucleon 8B

2001-01-25

arxiv.org/abs/nucl-ex/0101010v1

Phys.Rev.Lett. 86 (2001) 2750-2753

Physics

Nuclear Physics

Nuclear Experiment

Scientific paper

10.1103/PhysRevLett.86.2750

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.

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