Abstract
We have measured differential cross sections for the elastic scattering of charged pions from and into the backward hemisphere. Near the peak of the delta resonance, at =180 MeV, an angular distribution covering 114° to 168° in the laboratory extends our earlier measurements. At =142, 180, 220, and 256 MeV, we have measured an excitation function at angles approaching 170°. The cross sections for the reactions (,He, (,H show a rise at back angles which is not seen for (,He and (,H. There is a dip in the cross sections near 130° for =180 MeV.
- Received 20 May 1994
DOI:https://doi.org/10.1103/PhysRevC.51.2534
©1995 American Physical Society