Abstract
Photoproduction of mesons off targets of , , , , natural Cd, and natural Pb was studied using a bremsstrahlung beam with endpoint energies of 140, 145, 150, and 155 MeV. Photoproduction from a liquid hydrogen target was employed as a normalization. The measured yields were found to be in disagreement with published theoretical cross sections for and also in disagreement with a simple schematic model which assumed only coherent contributions from the multipole. The schematic model, however, did approximately predict the relative magnitudes of the yield curves for the energy range 14-20 MeV over threshold.
NUCLEAR REACTIONS , , , , Cd, Pb, (); MeV; measured ; test of reaction model.
- Received 25 August 1982
DOI:https://doi.org/10.1103/PhysRevC.26.2548
©1982 American Physical Society