Abstract
Low momentum transfer, high-resolution inelastic electron scattering on 208Pb has been used to study the distribution of E1 and E2 strength in the region of excitation energy E x = 8−12MeV. The E1 and E2 strength is very fragmented and the EWSR strength amounts to (10 +7 −6)% and (29 +11 −8)% in the investigated energy region, respectively. The E2 strength found is less than most current theoretical predictions but agrees qualitatively with a 1p - 1h +2p - 2h model calculation presented in this paper. The E2 strength is also smaller than what is known from hadron scattering and the shape of the strength distribution is also markedly different in electron and hadron scattering.
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