Total interaction and proton-removal cross-section measurements for the proton-rich isotopes 7Be, 8B, and 9C

B. Blank, C. Marchand, M. S. Pravikoff, T. Baumann, F. Boué, H. Geissel, M. Hellström, Naohito Iwasa, W. Schwab, K. Sümmerer, M. Gai

Research output: Contribution to journalArticlepeer-review

79 Citations (Scopus)


In an experiment performed at the FRS of GSI, we measured total interaction cross sections for 7Be, 8B, and 9C, one-proton-removal cross sections for 8B and 9C as well as two-proton-removal cross sections for 9C on targets ranging from carbon to lead at an energy of 285 MeV/nucleon. In addition, we performed measurements at 142 MeV/nucleon for 8B. The experimental results are compared to different calculations. Glauber-type calculations with different model density distributions show that, down to incident energies of about 50 MeV/nucleon, total interaction cross-section measurements with light targets are not sensitive to an extended proton distribution in 8B. However, at lower incident energies, a tail in the proton density distribution is needed to explain the total interaction cross sections. Total interaction cross-section measurements with high-Z targets in the present experiment show a significant increase of the cross sections due to low-lying electromagnetic strength.

Original languageEnglish
Pages (from-to)242-256
Number of pages15
JournalNuclear Physics A
Issue number2
Publication statusPublished - 1997 Oct 6
Externally publishedYes


  • Measured total interaction σ. C, Al,Sn,Pb(B, X),(C, X),E = 142 MeV/nucleon
  • Nuclear Reactions C, Al,Sn,Pb(Be, X),E = 142 MeV/nucleon

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Total interaction and proton-removal cross-section measurements for the proton-rich isotopes <sup>7</sup>Be, <sup>8</sup>B, and <sup>9</sup>C'. Together they form a unique fingerprint.

Cite this