Excitation and decay of the isovector spin-flip giant monopole resonance via the Pb-208(He-3,tp) reaction at 410 MeV.

Abstract The excitation and subsequent decay by proton emissionof the isovector spin-flipgiant monopole resonance are studied via the 208 Pb( 3 He, t ) reaction at 410 MeV. In the triton-singles spectrum 60 ± 5% of the non-energy-weighted sum-rule strength for this 2ħω resonance is found in the region 29 x ( 208 Bi)