Abstract
The elastic scattering of pions1,2 from nuclei has been a topic of current interest for several years. Generally speaking, the results available3,4 from the analysis of the limited amount of data that exists have indicated that optical model theories of suprising simplicity describe well the general features of the data, especially at energies above 100 MeV. The success in this energy region is probably due to the dominance of the (3,3) resonance that appears in π-N scattering at 180 MeV, which may mask more subtle details of the interaction. At low energies (0–75 MeV), where the dominance of this resonance is less pervasive,2 the simple first-order models may be expected to do less well in describing the data. In particular, the use of the impulse approximation, the neglect of Fermi motion and neglect of two-nucleon absorption are less valid assumptions at these energies.
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References
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© 1976 Plenum Press, New York
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Eisenstein, R.A. (1976). Studies of Low Energy π Elastic Scattering from Light Nuclei. In: Warren, J.B. (eds) Nuclear and Particle Physics at Intermediate Energies. NATO Advanced Study Institutes Series, vol 15. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4325-7_8
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DOI: https://doi.org/10.1007/978-1-4613-4325-7_8
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