Direct measurement of the absolute cross section of p(7Be,γ)8B

F. Terrasi, L. Gialanella, G. Imbriani, F. Strieder, L. Campajola, A. D'Onofrio, U. Greife, G. Gyurky, C. Lubritto, A. Ordine, V. Roca, C. Rolfs, M. Romano, D. Rogalla, C. Sabbarese, E. Somorjai, H. P. Trautvetter

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11 Citations (Scopus)


A new direct measurement of the absolute cross section of the 1H(7Be,γ)8B reaction has been performed in inverse kinematics at Ecm = 990 keV. A radioactive 7Be beam (Elab, = 8 MeV) and a windowless H2 gas target were used; 8B recoils were identified and counted by a recoil mass separator. The reaction cross section was derived by normalization to the elastic scattering cross section, measured in a separate run. The resulting value σr = 0.40 ± 0.12 μb yielded an astrophysical S-factor at zero energy So = 15.3 ± 4.5 eV b, in fair agreement with recommended values.

Original languageEnglish
Pages (from-to)539-542
Number of pages4
JournalNuclear Physics A
Issue number1-2
Publication statusPublished - Jan 1 2001

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Terrasi, F., Gialanella, L., Imbriani, G., Strieder, F., Campajola, L., D'Onofrio, A., Greife, U., Gyurky, G., Lubritto, C., Ordine, A., Roca, V., Rolfs, C., Romano, M., Rogalla, D., Sabbarese, C., Somorjai, E., & Trautvetter, H. P. (2001). Direct measurement of the absolute cross section of p(7Be,γ)8B. Nuclear Physics A, 688(1-2), 539-542.