APS » PROLA » Phys. Rev. Lett. » Volume 73 » Issue 20

Phys. Rev. Lett. 73, 2680 - 2683 (1994)

Coulomb Dissociation of 8B and the 7Be(p,γ)8B Reaction at Low Energies
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T. Motobayashi1, N. Iwasa1, Y. Ando1, M. Kurokawa1, H. Murakami1, J. Ruan (Gen)1, S. Shimoura1, S. Shirato1, N. Inabe2, M. Ishihara2 *, T. Kubo2, Y. Watanabe2, M. Gai3, R. H. France, III3, K. I. Hahn3 †, Z. Zhao3 ‡, T. Nakamura4 §, T. Teranishi4, Y. Futami5, K. Furutaka6, and Th. Delbar7
1Department of Physics, Rikkyo University, 3 Nishi-Ikebukuro, Toshima, Tokyo 171, Japan
2RIKEN (Institute of Physical and Chemical Research), Hirosawa, Wako, Saitama 351-01, Japan
3A. W. Wright Nuclear Structure Laboratory, Department of Physics, Yale University, New Haven, Connecticut 06511
4Department of Physics, University of Tokyo, Hongo, Bunkyo, Tokyo 113, Japan
5The Institute of Physics, University of Tsukuba, Ibaraki 305, Japan
6Department of Physics, Tokyo Institute of Technology, O-okayama, Meguro, Tokyo 152, Japan
7Institut de Physique Nucléaire, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium

Received 4 January 1994; revised 13 July 1994

The cross section for Coulomb dissociation of 8B—the 208Pb(8B7Bep)208Pb reaction—was measured using a 8B radioactive beam of 46.5 MeV/nucleon energy, and the cross section for the 7Be(p,γ)8B capture reaction was deduced at low energies; Ec. m.=0.6-1.7 MeV. The extracted astrophysical S17 factors were found to be consistent with the values measured by Vaughn et al. and Filippone et al. This result encourages further experimental studies extended to lower relative energies for a new determination of the S17 value relevant to the 8B solar neutrino flux.


©1994 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v73/p2680
DOI: 10.1103/PhysRevLett.73.2680
PACS: 25.70.De, 25.40.Lw, 27.20.+n, 96.60.Kx

* Also at Department of Physics, University of Tokyo, Hongo, Bunkyo, Tokyo 113, Japan.
† Present address: W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125.
‡ Present address: Nuclear Physics Laboratory, University of Washington, Seattle, WA 98195.
§ Present address: RIKEN (Institute of Physical and Chemical Research), Hirosawa, Wako, Saitama 351-01, Japan.

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