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Negative-parity alpha clusters in /sup 19/F

Journal Article · · Phys. Rev. C; (United States)
States populated in the /sup 15/N(/sup 6/Li,d)/sup 19/F reaction at 22 MeV are compared with those in /sup 16/O(/sup 6/Li,d)/sup 20/Ne at the same energy. Cross section ratios are in good agreement with a weak-coupling model, in contrast to previous observations via the (/sup 7/Li,t) reaction. Two strong transitions are observed to states at E/sub x/ = 8.288 and 8.957 MeV in /sup 19/F. The measured angular-distribution shapes and alpha-transfer strengths for these states are consistent with their being, respectively, the (13/2)/sup -/ and (11/2)/sup -/ members of the K/sup ..pi../ = (1/2)/sup -/ band in /sup 19/F. A comparison between the measured alpha-particle widths for these states and the single-particle alpha widths calculated in a Woods-Saxon well supports the above assignments.
Research Organization:
Physics Department, University of Pennsylvania, Philadelphia, Pennsylvania 19104
OSTI ID:
6739311
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 29:5; ISSN PRVCA
Country of Publication:
United States
Language:
English