Spin dependence of the isospin-forbidden decay /sup 8/Be(E-italic/sub x-italic/ = 27. 5 MeV). -->. d+/sup 6/Li

Journal Article · Fri Aug 01 04:00:00 EDT 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.34.401· OSTI ID:5380192

Soderstrum, J P; Knutson, L D

The first T-italic = 2 state in /sup 8/Be (E-italic/sub x-italic/ = 27.483 MeV) has been studied by means of the isospin-forbidden resonance in the reaction d+ /sup 6/Li..--> cap alpha..+..cap alpha... Angular distributions of the cross section and of the four analyzing powers for the reaction /sup 6/Li(d-arrow-right,..cap alpha..) /sup 4/He have been measured at energies above, below, and on resonance. Off-resonance analyzing power measurements have also been obtained for /sup 2/H(/sup 6/Li-arrow-right,..cap alpha..) /sup 4/He. Because of the symmetry properties of the reaction, the number of independent collision matrix elements is fairly small, and this makes it possible to determine the matrix elements directly by fitting the data. By comparing the matrix elements, one can determine partial widths (GAMMA/sub 0/ and GAMMA/sub 2/) for decay of the /sup 8/Be state into d+ /sup 6/Li states with channel spin 0 and 2. The measured ratio of the partial widths is GAMMA/sub 2//GAMMA/sub 0/ = 0.322 +- 0.091.

• Research Organization: Department of Physics, University of Wisconsin, Madison, Wisconsin 53706
• OSTI ID: 5380192
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 34:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
ALPHA PARTICLES
ANALYZING POWER
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BEAMS
BERYLLIUM 8
BERYLLIUM ISOTOPES
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DEUTERON REACTIONS
DIRECT REACTIONS
DISTRIBUTION
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FORBIDDEN TRANSITIONS
INFORMATION
ISOSPIN
ISOTOPES
LIGHT NUCLEI
LITHIUM 6 TARGET
MATRIX ELEMENTS
MULTI-NUCLEON TRANSFER REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PARTICLE PROPERTIES
POLARIZED BEAMS
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
SPIN
TARGETS
TRANSFER REACTIONS
TWO-NUCLEON TRANSFER REACTIONS