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Neutron particle-hole electric dipole states in /sup 206/ /sup 207/ /sup 208/Pb. [16. 2 to 17. 8 MeV]

Technical Report ·
DOI:https://doi.org/10.2172/6937623· OSTI ID:6937623

Inelastic proton scattering on /sup 206/Pb, /sup 207/Pb, and /sup 208/Pb through isobaric analog resonances was used to study neutron particle-hole excitations with large ground-state gamma branches in these Pb isotopes. Relative (p,p') cross sections at 90/sup 0/ are extracted for structures selectively excited on the d/sub 5/2/, s/sub 1/2/, and d/sub 3/2/-g/sub 7/2/ resonances. Interpretation of excitations in /sup 206/Pb and /sup 207/Pb in terms of coupling to states in /sup 208/Pb is discussed. Branching ratios for 1/sup -/ states in /sup 208/Pb at 4.84, 5.29, 5.94, and 6.31 MeV and the 1/2/sup +/ state in /sup 207/Pb at 4.63 MeV are deduced. 15 figures, 4 tables.

Research Organization:
Washington Univ., Seattle (USA)
DOE Contract Number:
AC06-76ER01388
OSTI ID:
6937623
Report Number(s):
DOE/ER/01388-455
Country of Publication:
United States
Language:
English

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