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Title: Compound nucleus formulation of reaction matrix theory
Authors: Cook, JL
Bertram, WK
Keywords: Analytical solution
Compound nuclei
R matrix
Nuclear reactions
Wigner-Eisenbud theory
Issue Date: Feb-1972
Publisher: Australian Atomic Energy Commission
Citation: Cook, J. L., & Bertram, W. K. (1971). Compound nucleus formulation of reaction matrix theory (AAEC/TM597). Lucas Heights, N.S.W.: Research Establishment, Australian Atomic Energy Commission.
Abstract: It is shown that multilevel resonance parameters for each element of the reaction matrix cannot be determined from available data. However, additional constraints may be introduced without affecting agreement with experiment. The Bohr compound nucleus hypothesis is applied to the T-matrix and it is found, as in Newton's model, that the channel matrix can be inverted analytically to provide simple formulae for cross sections, for both the real Wigner-Eisenbud reaction matrix and Moldauer's complex reaction matrix. Wigner-Eisenbud theory leads directly to Newton's strong correlation model and its unacceptable consequences. Moldauer's theory does not and can explain cross section behaviour adequately while being consistent with Bohr's hypothesis. Cross sections can be written as a sum of single level contributions, as in the Adler-Adler formulation. Finally, Moldauer's statistical theory is shown to be applicable, and expressions are derived fr the averaged cross sections as functions of the complex Moldauer resonance parameters.
Gov't Doc #: 897
ISBN: 0642994358
Other Identifiers: AAEC-TM-597
Appears in Collections:Scientific and Technical Reports

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