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Title: /sup 206/Pb(. cap alpha. ,d)/sup 208/Bi at 48 MeV

Journal Article · · Phys. Rev. C; (United States)

The /sup 206/Pb(..cap alpha..,d)/sup 208/Bi reaction was investigated at 48.2 MeV with about 25 keV resolution. Angular distributions were obtained for 48 levels at excitation energies up to 5 MeV. Many previously unknown levels were seen and most seem to have two-particle--two-hole structure and spins above 6; however, the relatively structureless angular distributions permit only approximate L assignments. Transitions to six low-lying one-particle--one-hole states were analyzed in detail. Distorted-wave Born approximation predictions agreed with the observed angular distributions, but the absolute cross sections computed from published /sup 206/Pb and /sup 208/Bi wave functions are generally larger than observed, particularly those for the J/sub max/ states. Contributions of the dominant two-step sequential stripping channels to the one-step results were investigated. They were important and gave varying amounts of enhancement for all six levels. The observed quenching of the J/sub max/ cross sections was not reproduced.

Research Organization:
Nuclear Physics Laboratory, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
OSTI ID:
6528470
Journal Information:
Phys. Rev. C; (United States), Vol. 29:6
Country of Publication:
United States
Language:
English

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