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Isospin-mixed /sup 18/F states seen via /sup 14/N(. cap alpha. ,. cap alpha. /sub 1/)/sup 14/N(2. 31 MeV). [7. 6 to 16. 8 MeV, differential cross sections]

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

Extensive differential cross section measurements are reported for the isospin-forbidden reaction /sup 14/N(..cap alpha.., ..cap alpha../sub 1/)/sup 14/N over the energy range 7.6 < E/sub b/ < 16.9 MeV at 11 to 16 angles. A partial wave analysis with a new method of removing ambiguities and parametrizing S matrix elements yields the level parameters of 151 isospin-mixed, natural-parity states in /sup 18/F. These level parameters satisfactorily reproduce all the data. Many of these /sup 18/F states correspond to those seen via /sup 16/O(d, ..cap alpha../sub 1/)/sup 14/N. A number of levels have been identified as the analogs of T = 1 states in /sup 18/O. Correlations in S/sub l/(E/sub x/) suggest intermediate structure and support Friedman's bridge state hypothesis. (AIP)

Research Organization:
Department of Physics, University of Wisconsin, Madison, Wisconsin 53706
OSTI ID:
7342201
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 14:6; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651323 -- Nuclear Properties &amp; Reactions
A=6-19
Experimental-- Energy Levels &amp; Transitions-- (-1987)
651325* -- Nuclear Properties &amp; Reactions
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ENERGY RANGE
FLUORINE 18
FLUORINE ISOTOPES
HOURS LIVING RADIOISOTOPES
INELASTIC SCATTERING
ISOSPIN
ISOTOPES
LIGHT NUCLEI
MATRICES
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NITROGEN 14 TARGET
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
PARITY
PARTIAL WAVES
PARTICLE PROPERTIES
RADIOISOTOPES
S MATRIX
SCATTERING
TARGETS