Summary
The abundances of the K μ3 and Ke3 decay modes were checked in a large stack ofBirge et al. (1), using the additional criteria ofAlexander et al. (2). Our results agree completely with those ofBirge et al. The weighted average of these and comparable corrected results of others yields a relative abundance of (3.9 ± .5)% for K μ3 and of (5.1 ± .8)% for Ke3 decay. Available experimental data on the electron spectrum of the Ke3 decay mode are compiled and compared to theoretical calculations byFuruichi et al. (3). No evidence is found for an abnormally short mean free path of the positive secondary pions from K π2 decay as previously reported byAlexander et al. (2).
Riassunto
Le abbondanze dei modi di decadimento K μ3 e Ke3 furono esaminate in un grosso pacco di emulsioni diBirge et al. (1) usando i criteri addizionali diAlexander et al. (2). I nostri risultati si accordano perfettamente con quelli diBirge et al. La media ponderata di questi ed altri risultati corretti per renderli omogenei dà un’abbondanza relativa del (3.9 ± .5)% per i decadimenti K μ3 e del (5.1 ± .8)% per i Ke3. Si elaborano i dati sperimentali disponibili per lo spettro elettronico del decadimento Ke3 e si confrontano col calcolo teorico diFuruichi et al. (3). Non si trovano prove per un cammino libero medio anormalmente corto dei pioni secondari positivi da decadimento K π2, come precedentemente riferito daAlexander et al. (2).
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References
R. W. Birge, D. H. Perkins, J. R. Peterson, D. H. Stork andM. N. Whitehead:Nuovo Cimento,4, 834 (1956).
G. Alexander, R. H. W. Johnston andC. O’Ceallaigh:Nuovo Cimento,6, 478 (1957).
S. Furuichi, T. Kodama, S. Ogawa, Y. Sugahara, A. Wakasa andM. Yonezawa:Progr. Theor. Phys.,17, 89 (1957).
G. Stack-collaboration:Nuovo Cimento,2, 1063 (1955).
J. Crussard, V. Fouché, J. Hennessy, G. Kayas, L. Leprince-Ringuet, D. Morellet andF. Renard:Nuovo Cimento,3, 731 (1956).
D. M. Ritson, A. Pevsner, S. C. Fung, M. Widgoff, G. T. Zorn, G. Goldhaber andS. Goldhaber:Phys. Rev.,101, 1085 (1956).
T. F. Hoang, M. F. Kaplon andG. Yekutieli:Phys. Rev.,102, 1185 (1956).
T. F. Hoang, M. F. Kaplon andG. Yekutieli:Phys. Rev.,105, 278 (1957).
M. G. K. Menon, C. O’Ceallaigh andO. Rochat:Phil. Mag.,42, 932 (1951).
J. H. Atkinson andB. H. Willis:UCRL-2426 II (rev.) (1957).
L. Voyvodic:Progr. Cosm. Ray Phys.,2, 273 (1954).
G. Alexander andR. F. W. Johnston:Nuovo Cimento,5, 363 (1957).
M. Di Corato, B. Locatelli andD. Hirschberg:Suppl. Nuovo Cimento,4, 448 (1956).
G. Costa andN. Dallaporta:Nuovo Cimento,2, 519 (1955).
S. Oneda andA. Wakasa:Nuclear Physics,1, 445 (1956).
S. Gotô:Progr. Theor. Phys.,17, 107 (1957).
S. Furuichi, Y. Sugahara, A. Wakasa andM. Yonezawa:Nuovo Cimento,5, 285 (1957).
M. W. Friedlander, D. Keefe, M. G. K. Menon andL. Van Rossum:Phil. Mag.,45, 1043 (1954).
C. Dahanayake, P. E. Francois, Y. Fujimoto, P. Iredale, C. J. Waddington andM. Yasin:Phil. Mag.,45, 1219 (1954).
R. H. W. Johnston andC. O’Ceallaigh:Phil. Mag.,46, 393 (1955).
W. W. Chupp, G. Goldhaber, S. Goldhaber, S. J. Goldsack, J. E. Lannutti, F. M. Smith andF. H. Webb:Phys. Rev.,99, 335 (1955).
H. H. Heckmann:UCRL 3003 (1955).
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This work is part of the research program of the Institution for Fundamental Research of Matter (F.O.M.), financially supported by the Netherlands Organization for Pure Scientific Research (Z.W.O.).
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Bruin, M., Holthuizen, D.J. & Jongejans, B. On the abundances of the K μ3 and Ke3 decay modes of positive K mesons. Nuovo Cim 9, 422–432 (1958). https://doi.org/10.1007/BF02725098
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DOI: https://doi.org/10.1007/BF02725098