ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA
; AUSTRALIAN NATL UNIV,RES SCH PHYS SCI & ENGN,DEPT THEORET PHYS,CANBERRA,ACT 0200,AUSTRALIA
Using the experimental <(p)over bar N> amplitude and multiple scattering theory, we obtained the antiproton optical potential at incident energies from 180 to 1800 MeV with the impulse approximation. It is found that the imaginary parts of the optical potential strengths are nearly constant between 130 and 140 MeV. The elastic data of the 180 MeV antiproton on C-12, O-16, Ca-40, and Pb-208 and the inelastic data of the 180 MeV antiproton on C-12 are analyzed within the framework of the eikonal approximation. The collective excitations to one-phonon levels are treated using the antiproton optical potential with the adiabatic approximation. The differential cross section of elastic scattering of 180 to 1833 MeV antiproton on C-12, On O-16, Ca-40, and Pb-208 and the inelastic scattering of 180 to 1833 MeV antiproton C-12 are predicted.