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Published March 8, 1965 | Published
Journal Article Open

General S-Matrix Methods for Calculation of Perturbations on the Strong Interactions


Recently, the authors proposed an on-the-mass-shell, S-matrix method for computing the effects of small perturbations on the masses and coupling constants of strongly interacting particles. In the present paper, the method is generalized to the multichannel case. The use of group-theoretical techniques in reducing the complexity of the method is described in detail.

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© 1965 The American Physical Society. Received 29 October 1964; published in the issue dated March 1965. Work supported in part by the U. S. Atomic Energy Commission. Alfred P. Sloan Foundation Fellow.

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