Measurement of the coulomb dissociation of 8B at 254 MeV /nucleon and the 8B solar neutrino flux

N. Iwasa, F. Boué, G. Surówka, K. Sümmerer, T. Baumann, B. Blank, S. Czajkowski, A. Förster, M. Gai, H. Geissel, E. Grosse, M. Hellström, P. Koczon, B. Kohlmeyer, R. Kulessa, F. Laue, C. Marchand, T. Motobayashi, H. Oeschler, A. OzawaM. S. Pravikoff, E. Schwab, W. Schwab, P. Senger, J. Speer, C. Sturm, A. Surowiec, T. Teranishi, F. Uhlig, A. Wagner, W. Walus, C. A. Bertulani

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Abstract

We have measured the Coulomb dissociation of 8B into 7Be and a proton at 254 MeV/nucleon using a large-acceptance focusing spectrometer. The astrophysical S17-factor for the 7Be(p,γ)8B reaction at Ec.m.=0.25-2.78MeV is deduced yielding S17(0)=20.6±1.2 (expt) ±1.0(theor)eVb. This result agrees with the presently adopted zero-energy S17-factor obtained in direct-reaction measurements and with the results of other Coulomb-dissociation studies performed at 46.5 and 51.2 MeV/nucleon.

Original languageEnglish
Pages (from-to)2910-2913
Number of pages4
JournalPhysical Review Letters
Volume83
Issue number15
DOIs
Publication statusPublished - Jan 1 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Iwasa, N., Boué, F., Surówka, G., Sümmerer, K., Baumann, T., Blank, B., Czajkowski, S., Förster, A., Gai, M., Geissel, H., Grosse, E., Hellström, M., Koczon, P., Kohlmeyer, B., Kulessa, R., Laue, F., Marchand, C., Motobayashi, T., Oeschler, H., ... Bertulani, C. A. (1999). Measurement of the coulomb dissociation of 8B at 254 MeV /nucleon and the 8B solar neutrino flux. Physical Review Letters, 83(15), 2910-2913. https://doi.org/10.1103/PhysRevLett.83.2910