Abstract
A relativistic nonlocal model for the inclusive photoproduction of η mesons from complex nuclei is introduced. The model is based on the dominance of the resonance. We compare the results of our calculations with the available data on inclusive cross sections for the nuclei C, Al, and Cu. Assuming the resonance propagates freely in the nuclear medium, we find that the calculated angular distribution and energy dependence of the cross sections reproduce the data in a reasonable fashion. The present nonlocal model allows for the inclusion of density dependent mass and width in the calculations. Including these in the calculations and comparing with presently available data leads us to conclude that if any medium modifications of the properties of the resonance existed, they would likely be small.
- Received 6 April 2006
DOI:https://doi.org/10.1103/PhysRevC.76.055207
©2007 American Physical Society