Measurement of theKμ30Ke30Branching Ratio, theKl30Form Factors, and theKπ30Decay Parameters

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ID: 267638
1973
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Abstract
In a hydrogen bubble-chamber experiment with a KL beam we have measured the Kμ30Ke30 branching ratio to be R=0.741±0.044 and the slope of the f+ form factor to be λ+=0.019±0.013. The data have been analyzed with a new variable, (pT′)2, which isolates a sample of unique Ke3 decays and is independent of the KL beam momentum. These results are compatible with the predictions of K* dominance for f+ and the Callan-Treiman relation for f0, but indicate a breaking of the ΔI=12 rule. We have also determined the (KL→π+π−π0)(allcharged KL decays) branching ratio to be Rπ=0.146±0.004, and have found the Eπ0* slope of the Kπ3 Dalitz plot to be given by g=0.73±0.04.
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Authors G. W. Brandenburg,W. B. Johnson,D. W. G. S. Leith,J. S. Loos,J. A. J. Matthews,F. C. Winkelmann,R. J. Yamartino, G. W. Brandenburg, W. B. Johnson, D. W. G. S. Leith, J. S. Loos, J. A. J. Matthews, F. C. Winkelmann, R. J. Yamartino
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Journal physical review d
Year 1973
DOI
10.1103/physrevd.8.1978
URL
https://sciprofiles.com/publication/view/f304a3f62a82f6d6de7e327513f8f3db
Keywords
branching ratio thekπ30decay thekμ30ke30branching thekl30form

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