Abstract
Corrections to the Glauber model for intermediate energy proton- elastic scattering have been calculated at the lab energies GeV using the multiple diffraction expansion formalism. In this expansion, the Glauber amplitude appears as a leading term in a perturbation series. Leading corrections due to (i) wave spreading (noneikonal), (ii) internal excitation (recoil), as well as (iii) zero-point motion (different Galilean frames) effects are obtained in a simple model. Their structures are analyzed and their energy dependences are examined. The wave-spreading and internal-excitation corrections agree with those obtained by Wallace. The use of Wallace's relativistic kinematics changes the differential cross section significantly. A new zero-point motion correction is found to be important. A simple dependence of the results on the sign of ( of the scattering amplitude) is pointed out. The relative importance of these corrections decreases as energy increases, as expected. The significance of our results is briefly discussed.
NUCLEAR REACTIONS (), GeV; calculated ; wave spreading, internal excitation, and zero-point motion corrections to Glauber theory.
- Received 15 November 1976
DOI:https://doi.org/10.1103/PhysRevC.15.2146
©1977 American Physical Society