1. Coulomb dissociation of high-energy radioactive beams: the case of 8B
- Author
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Andreas Wagner, Stefan Typel, Dolores Cortina Gil, and Fairouz Hammache
- Subjects
Physics ,Massless particle ,Nuclear and High Energy Physics ,Quantum mechanics ,Hadron ,Coulomb ,Elementary particle ,Fermion ,Coulomb excitation ,Atomic physics ,Nucleon ,Lepton - Abstract
Coulomb dissociation of 8 B is an alternative method to measure the low-energy 7 B(p,γ) 8 B cross section. This reaction is of great current interest in the context of solar neutrinos and has been studied recently both in direct proton-capture [Phys. Rev. Lett. 86 (2001) 3985, Nucl. Phys. A 696 (2001) 219, Phys. Rev. C 68 (2003) 065803, Phys. Rev. Lett. 90 (2003) 022501] and in Coulomb-dissociation experiments [Phys. Lett. B 391 (1997) 261, Eur. Phys. J. A 3 (1998) 213, Phys. Rev. Lett. 83 (1999) 2910, Phys. Rev. C 63 (2001) 065806, Phys. Rev. Lett. 90 (2003) 232501]. The validity of the latter method has been questioned since the role of E 2 multipolarity is considered controversial. The present experiment [Phys. Rev. Lett. 90 (2003) 232501] has studied observables that could clarify the role of a possible E 2 contribution.
- Published
- 2004
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