Excitation of isovector giant resonances inAl27by heavy ion charge exchange reaction

Abstract
Excitation of isovector giant resonances in Al27 was studied by using the Al27 (7Li, Be7 )27Mg reaction at incident energies of 100, 150, and 180 MeV. We observed the analog of the giant dipole resonance at Ex=14.3 MeV in Mg27. From the observed excitation function, we suggest that a peak at Ex=9.5 MeV is a resonance with a higher multipolarity than one. In the excitation energy region higher than the giant dipole resonance, no resonance was observed.