Abstract
Inelastic scattering of 180 MeV and from ,60,62,64Ni shows a prominent quadrupole feature near 65 MeV, identified as the familiar isoscalar giant quadrupole resonance. For the heavier two isotopes, the scattering cross sections greatly exceed those for , the same effect previously noted in pion scattering on heavy nuclei. Since these four nickel targets contain a range of single-nucleon binding energies, these new data demonstrate the influence of these single-particle effects on the apparent isospin response, increasingly neutronlike for the heavier isotopes.
- Received 27 February 1989
DOI:https://doi.org/10.1103/PhysRevC.40.859
©1989 American Physical Society