/sup 67/Li(. pi. /sup +/,pd)/sup 3//sup ,//sup 4/He reactions at 59. 4 MeV
The (..pi../sup +/,pd) reactions on /sup 6/Li and /sup 7/Li have been studied at T/sub ..pi../ = 59.4 MeV. Triple- and single-differential cross sections for these reactions are presented. The data are fitted to a T matrix and compared to the /sup 3/H(..pi../sup +/,p)/sup 2/H reaction. A model in which the pion interacts and is absorbed on a ''quasi-triton'' cluster describes the main features of the data very well. An extrapolation of our data into unmeasured regions of phase space suggests that about 8% of the pion absorption cross section on /sup 6/Li at 59.4 MeV goes into the (..pi../sup +/,pd) channel. The /sup 7/Li(..pi../sup +/,pd)/sup 4/He(2 /sup -/) transition at 22.1 MeV excitation appears to be strongly populated. This is a surprise because it is not seen in the /sup 7/Li(p,..cap alpha..)/sup 4/He reaction.
- Research Organization:
- Wheaton College, Wheaton, Illinois 60187
- OSTI ID:
- 6139841
- Journal Information:
- Phys. Rev. C; (United States), Vol. 33:4
- Country of Publication:
- United States
- Language:
- English
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HELIUM 4
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LITHIUM 6 TARGET
PION PLUS REACTIONS
LITHIUM 7 TARGET
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DIFFERENTIAL CROSS SECTIONS
HELIUM 3
MEV RANGE 10-100
MULTIWIRE PROPORTIONAL CHAMBERS
PHASE SPACE
PROTONS
S MATRIX
SHELL MODELS
BARYONS
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CROSS SECTIONS
ELEMENTARY PARTICLES
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HADRON REACTIONS
HADRONS
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MATHEMATICAL SPACE
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MESON REACTIONS
MEV RANGE
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
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