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

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Abstract

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
Volume37
Issue number3
DOIs
StatePublished - Jan 1 1988

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Ritchie, B., Escalante, J. A., Adams, G. S., Al-Solami, M., Lasheen, N., Pignault, G., Preedom, B. M., Whisnant, C. S., Mitchell, J. H., Peterson, R. J., Boudrie, R. L., & Wright, D. H. (1988). 50 MeV pion inelastic scattering to the 1+ doublet in C12. Physical Review C, 37(3), 1347-1349. https://doi.org/10.1103/PhysRevC.37.1347