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

被引：149

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

页码：2910 / 2913

页数：4

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