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

研究成果: Article査読

156 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)2910-2913
ページ数4
ジャーナルPhysical review letters
83
15
DOI
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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