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

被引：148
|
作者：
Iwasa, N [1 ]
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
Ozawa, A
Pravikoff, MS
Schwab, E
Schwab, W
Senger, P
Speer, J
Sturm, C
Surowiec, A
Teranishi, T
Uhlig, F
Wagner, A
Walus, W
Bertulani, CA
机构：
[1] Gesell Schwerionenforsch GmbH, D-65291 Darmstadt, Germany
[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[3] CEN Bordeaux Gradignan, F-33175 Gradignan, France
[4] Jagiellonian Univ, PL-30059 Krakow, Poland
[5] Tech Univ Darmstadt, D-64289 Darmstadt, Germany
[6] Univ Connecticut, Storrs, CT 06269 USA
[7] Rossendorf Inc, Forschungszentrum Rossendorf EV, D-01314 Dresden, Germany
[8] Univ Marburg, D-35032 Marburg, Germany
[9] Rikkyo Univ, Tokyo 171, Japan
[10] Univ Fed Rio de Janeiro, Inst Fis, BR-21945970 Rio De Janeiro, Brazil
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 15期
关键词：
D O I：
10.1103/PhysRevLett.83.2910
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have measured the Coulomb dissociation of B-8 into Be-7 and a proton at 254 MeV/nucleon using a large-acceptance focusing spectrometer. The astrophysical S-17-factor for the Be-7(p, gamma)B-8 reaction at E-c.m. = 0.25-2.78 MeV is deduced yielding S-17(0) = 20.6 +/- 1.2 (expt) +/- 1.0(theor) eVb. This result agrees with the presently adopted zero-energy S-17-factor obtained in direct-reaction measurements and with the results of other Coulomb-dissociation studies performed at 46.5 and 51.2 MeV/nucleon.
引用
收藏
页码：2910 / 2913
页数：4
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