Suzuki, Mahiko (1966) Branching Ratios Into Kμ2, Ke3, and Ke4 in the Partially Conserved Axial-Vector Current. Physical Review Letters, 16 (5). pp. 212-215. ISSN 0031-9007 http://resolver.caltech.edu/CaltechAUTHORS:SUZprl66b
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The partially conserved axial-vector current hypothesis (PCAC)  has been successfully applied to the parity-nonconserving amplitudes of the nonleptonic hyperon decays  and to the nonleptonic K decays . The ΔI = 1/2 rules are proved for all the processes except Σ decays in the approximation of putting the pion four-momenta equal to zero . In addition, the branching ration K3π/K2π is calculated and found to be in good agreement with experiment.
|Additional Information:||© 1966 The American Physical Society. Received 27 December 1965. The author is very grateful to Professor R.F. Dashen and Professor M. Gell-Mann, and Dr. A. Bietti, Dr. Y. Dothan, Dr. F.J. Gilman, and Dr. K. Kawarabayashi for helpful discussions. He is especially indebted to Dr. K. Kawarabayashi for stimulating suggestions and to Dr. F.J. Gilman for careful reading of the manuscript. Work supported in part by the U.S. Atomic Energy Commission. Prepared under Contract No. AT(11-1)-68 for the San Francisco Operations Office, U.S. Atomic Energy Commission.|
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