Abstract
The Li,Beγ) reaction at ELi)/A = 70 MeV has been used to investigate isovector giant resonances and to measure the ratio of ΔS=1 to ΔS=0 spin strength in at high excitation energy. In the singles spectrum, the analogue of the giant dipole resonance is observed. Another resonance is observed at ≊15 MeV in the residual nucleus, which we suggest is a collective state. The isovector spin transfer strength at high excitation for the calcium target is compared to that measured with a carbon target under the same experimental conditions. Although more spin transfer strength at high excitation is observed for the calcium target than for the carbon target, this only accounts in part for an apparent discrepancy between previous (p→,p) and Li,Be) experiments. The general utility of the Li, ) reaction is discussed. © 1996 The American Physical Society.
- Received 19 January 1996
DOI:https://doi.org/10.1103/PhysRevC.54.125
©1996 American Physical Society