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Compound nucleus (. cap alpha. ,p) and (p,p') reactions on odd-A nuclei in the Ni region

Journal Article · · Phys. Rev., C; (United States)
Experimental compound nucleus cross sections are obtained for (p,p') and (..cap alpha..,p) reactions induced by 12 MeV protons and 15 and 18 MeV ..cap alpha.. particles on /sup 55/Mn, /sup 57/Fe, /sup 59/Co, /sup 61/Ni, and /sup 63/Cu. The noncompound nucleus cross sections, estimated from the spectra from /sup 64/Ni, are found to account for at least 20% of the total proton cross sections and also soften the spectra in the (p,p') cases. When these are subtracted off, good agreement in spectral intensities is found between experimental compound nucleus cross sections and predictions using Hauser-Feshbach calculations with Gilbert-Cameron level density parameters. No adjustable parameters were used. The slopes of the proton energy spectra from both (p,p') and (..cap alpha..,p) reactions are consistently flatter (i.e., decrease less rapidly with increasing proton energy) for odd-A than for even-even targets.
Research Organization:
University of Pittsburgh, Pittsburgh, Pennsylvania 15260
OSTI ID:
7097359
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:5; ISSN PRVCA
Country of Publication:
United States
Language:
English