Positive-pion-nucleus elastic scattering at 20 MeV

Felix E. Obenshain*, F. E. Bertrand, E. E. Gross, N. W. Hill, J. R. Wu, R. L. Burman, M. Hamm, M. J. Leitch, R. D. Edge, B. M. Preedom, M. A. Moinester, M. Blecher, K. Gotow

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Measurements of positive-pion elastic scattering cross sections at 20 MeV have been made in the angular range 30°-150°. Angular distributions were obtained for targets of C12, O16, Ca40, Zr90, Sn120, and Pb208. The data were fit with a phenomenological optical model potential calculation to obtain the real and imaginary s- and p-wave strength parameters. These parameters are compared to those obtained from data at 30, 40, and 50 MeV. Cross sections calculated from an optical model potential based on pionic atom data are in good agreement with our data at 20 MeV. NUCLEAR REACTIONS Elastic scattering of 20-MeV + from C12, O16, Ca40, Zr90, Sn120, and Pb208. Angular distributions 30°L160°. Optical model analysis of differential cross sections.

Original languageEnglish
Pages (from-to)2753-2758
Number of pages6
JournalPhysical Review C - Nuclear Physics
Issue number6
StatePublished - 1983


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