Electroexcitation of Giant Resonances inPb208

Abstract
The giant-resonance region in Pb208 was observed by inelastic electron scattering. We present evidence for the existences of a 2+ (or 0+) state at ∼ 22 MeV and a 3 state at ∼ 19 MeV with giant-resonance character. The resonance states between 8.6 and 11.6 MeV are confirmed to be 2+ (or 0+) and the sum of their strengths exhausts about 50% of the E2 sum rule or 100% of E0.