Pion-nucleus elastic scattering on 12C, 40Ca, 90Zr, and 208Pb at 400 and 500 MeV
George Kahrimanis, George Burleson, C. M. Chen, B. C. Clark, Kalvir Dhuga, D. J. Ernst, J. A. Faucett, H. T. Fortune, S. Hama, Ahmed Hussein, M. F. Jiang, K. W. Johnson, L. Kurth Kerr, Scott Mathews, John McGill, C. Fred Moore, Shaul Mordechai, Christopher L. Morris, John O'Donnell, Mike Snell, Mohini Rawool-Sullivan, L. Ray, Charles Whitley, Allen L. Williams
Abstract
Pion-nucleus elastic scattering at energies above the Delta(1232) resonance is studied using both pi+ and pi- beams on 12C, 40Ca, 90Zr, and 208Pb. The present data provide an opportunity to study the interaction of pions with nuclei at energies where second-order corrections to impulse approximation calculations should be small. The results are compared with other data sets at similar energies, and with four different first-order impulse approximation calculations. Significant disagreement exists between the calculations and the data from this experiment.
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