Inelastic proton excitation of high-lying giant resonances

G. S. Adams; T. A. Carey; J. B. McClelland; J. M. Moss; S. J. Seestrom-Morris; D. Cook

doi:10.1103/PhysRevC.33.2054

Inelastic proton excitation of high-lying giant resonances

G. S. Adams, T. A. Carey, J. B. McClelland, J. M. Moss, S. J. Seestrom-Morris, and D. Cook

Phys. Rev. C 33, 2054 – Published 1 June 1986

Abstract

Inelastic scattering of 800 MeV protons has been studied for targets of ${}^{208}{Pb}$ , ${}^{144}{Sm}$ , and ${}^{116}{Sn}$ . At excitation energies above particle emission threshold a spectrum of giant resonances is clearly in evidence. Angular distributions were extracted for the high-lying peaks (∼20 MeV excitation energy) in ${}^{208}{Pb}$ and ${}^{144}{Sm}$ . Collective model distorted-wave Born approximation analyses of these data show that isoscalar octupole and dipole states dominate the spectra.