Selective alpha particle decay of /sup 12/C + /sup 12/C resonances to excited /sup 20/Ne rotational bands observed in the /sup 12/C(/sup 12/C,. cap alpha. ) /sup 20/Ne reaction

Journal Article · Sat Sep 01 00:00:00 EDT 1984 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.30.866· OSTI ID:5918695

Ledoux, R J; Ordonez, C E; Bechara, M J; Al-Juwair, H A; Lavelle, G; Cosman, E R

Excitation functions of the /sup 12/C(/sup 12/C, ..cap alpha..)/sup 20/Ne reaction were measured at Theta/sub lab/ = 7.5/sup 0/ between E/sub c.m./ = 14-40 MeV and angular distributions were measured from E/sub c.m./ = 17.8 to 20.6 MeV. Summed yields reveal prominent intermediate structure resonances over the entire range which correlate well to resonances previously observed in elastic data. The resonances show enhanced decays to excited rotational bands in /sup 20/Ne with reduced widths comparable to those for the elastic channel and an order of magnitude greater than those for the /sup 20/Ne ground state band. A discussion is given of the resonances as shape-isomeric states in a shell model secondary minimum in /sup 24/Mg, and of the selective alpha decay as being transitions to states of related configuration in /sup 20/Ne.

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• DOE Contract Number: AC02-76ER03069
• OSTI ID: 5918695
• Journal Information: Phys. Rev. C; (United States), Vol. 30:3
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 12 TARGET
COMPOUND-NUCLEUS REACTIONS
MAGNESIUM 24
ALPHA DECAY
ALPHA PARTICLES
CROSS SECTIONS
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
LEVEL WIDTHS
MEV RANGE 10-100
NEON 20
RESONANCE
SHELL MODELS
ALKALINE EARTH ISOTOPES
CHARGED PARTICLES
DATA
DECAY
ENERGY RANGE
EVEN-EVEN NUCLEI
FUNCTIONS
INFORMATION
ISOTOPES
LIGHT NUCLEI
MAGNESIUM ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
NEON ISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
STABLE ISOTOPES
TARGETS
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