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

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

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B. Davids1,2 *, D. W. Anthony1,3, T. Aumann1, Sam M. Austin1,2, T. Baumann1, D. Bazin1, R. R. C. Clement1,2, C. N. Davids4, H. Esbensen4, P. A. Lofy1,3, T. Nakamura1, B. M. Sherrill1,2, and J. Yurkon1
1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
2Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824
3Department of Chemistry, Michigan State University, East Lansing, Michigan 48824
4Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

Received 8 September 2000

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,γ)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 Erel  =  130 to 400 keV, we find S17(0)  =  17.8-1.2+1.4  eV b.


©2001 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.86.2750
DOI: 10.1103/PhysRevLett.86.2750
PACS: 25.70.De, 26.20.+f, 26.65.+t, 27.20.+n

* Present address: Kernfysisch Versneller Instituut, Groningen, The Netherlands.Email address: davids@kvi.nl

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