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29 March 2024
 
  » pubmed » pmid12857251

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Coulomb dissociation of 8B and the low-energy cross section of the 7Be(p,gamma)8B solar fusion reaction
F Schümann ; F Hammache ; S Typel ; F Uhlig ; K Sümmerer ; I Böttcher ; D Cortina ; A Förster ; M Gai ; H Geissel ; U Greife ; N Iwasa ; P Koczo? ; B Kohlmeyer ; R Kulessa ; H Kumagai ; N Kurz ; M Menzel ; T Motobayashi ; H Oeschler ; A Ozawa ; M P?osko? ; W Prokopowicz ; E Schwab ; P Senger ; F Strieder ; C Sturm ; Zhi-Yu Sun ; G Surówka ; A Wagner ; W Walu? ;
Date 13 Jun 2003
Journal Phys Rev Lett, 90 (23), 232501
AbstractAn exclusive measurement of the Coulomb breakup of 8B into 7Be+p at 254A MeV allowed the study of the angular correlations of the breakup particles. These correlations demonstrate clearly that E1 multipolarity dominates and that E2 multipolarity can be neglected. By using a simple single-particle model for 8B and treating the breakup in first-order perturbation theory, we extract a zero-energy S factor of S17(0)=18.6+/-1.2+/-1.0 eV b, where the first error is experimental and the second one reflects the theoretical uncertainty in the extrapolation.
Source PubMed, pmid12857251
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