50 MeV pion inelastic scattering to the 1+ doublet in C12

Barry Ritchie, J. A. Escalante, G. S. Adams, M. Al-Solami, N. Lasheen, G. Pignault, B. M. Preedom, C. S. Whisnant, J. H. Mitchell, R. J. Peterson, R. L. Boudrie, D. H. Wright

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Cross sections have been measured for the excitation of the 12.71 MeV, T=0, and 15.11 MeV, T=1, 1+ states in C12 by 50 MeV scattering. The cross section ratio, R=(12.7 MeV)/(15.1 MeV), was found to be 7.51.5 for + and 6.61.5 for - at 50 MeV, giving an isospin averaged value of R=7.051.06. These results indicate that the anomalous behavior of R is attributable to the energy dependence of the T=1 1+ level. The data also indicate that the impulse approximation is probably invalid at 50 MeV, contrary to the conclusions of a recent study at 65 MeV.

Original languageEnglish (US)
Pages (from-to)1347-1349
Number of pages3
JournalPhysical Review C
Issue number3
StatePublished - 1988

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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