Experimental Study of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mrow><msub><mrow><mi>K</mi></mrow><mrow><mi>μ</mi><mn>3</mn></mrow></msub></mrow></mrow><mrow><mn>0</mn></mrow></msup></mrow></math></span> Form Factors

P. Basile; J. W. Cronin; B. Thevent; R. Turlay; S. Zylberajch; A. Zylbersztejn

doi:10.1103/PhysRevD.2.78

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Experimental Study of the ${K_{μ 3}}^{0}$ Form Factors

P. Basile, J. W. Cronin^*, B. Thevent, R. Turlay, S. Zylberajch, and A. Zylbersztejn

Department de Physique des Particules Elémentaires, CEN Saclay, France

^*Present address: Jadwin Hall, Princeton, N. J.

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Phys. Rev. D 2, 78 – Published 1 July, 1970

DOI: https://doi.org/10.1103/PhysRevD.2.78

Abstract

A spark-chamber experiment is described which measured the distribution in the Dalitz plot of 3140 ${K_{μ 3}}^{0}$ decays, and measured the branching ratio $\frac{Γ (K_{L} \to π μ ν)}{Γ (K_{L} \to π e ν)}$ . From a study of the Dalitz plot, a ratio of form factors $ξ = - 3.9 \pm 0.4$ is found with little or no energy dependence. The branching-ratio measurement gives a value $ξ = - 0.5 \pm 0.5$ which is incompatible with the Dalitz-plot result. The results are discussed from the point of view of possible experimental bias. The results are compared with other experiments.

References (20)

T. D. Lee and C. S. Wu, Ann. Rev. Nucl. Sci. 15, 381 (1965)
D. Cutts, R. Stiening, C. Wiegand, and M. Deutsch, Phys. Rev. 184, 1380 (1969)
S. W. MacDowell, Nuovo Cimento 6, 1445 (1957)
A. Firestone, J. K. Kim, J. Lach, J. Sandweiss, H. D. Taft, and P. Guidoni, Phys. Rev. Letters 18, 176 (1967)
J. P. Lowys, B. Aubert, L. M. Chounet, and C. Pascaud, Phys. Letters 24B, 75 (1967)
J. A. Kadyk, J. H. Chan, D. Drijard, Y. Oren, and B. M. Sheldon, Phys. Rev. Letters 19, 597 (1967)
S. H. Aronson and K. W. Chen, Phys. Rev. Letters 20, 287 (1968)
P. Basile, J. W. Cronin, B. Thevenet, R. Turlay, S. Zylberajch, and A. Zylberszteijn, Phys. Letters 26B, 542 (1968)
[17]
S. L. Marateck and S. P. Rosen, Phys. Letters 29B, 497, (1969)
K. K. Young, M. J. Longo, and J. A. Helland, Phys. Rev. Letters 18, 806 (1967)
N. Cabibbo, in Proceedings of the Thirteenth International Conference on High-Energy Physics, Berkeley, California, 1966 (University of California Press, Berkeley, 1967), p. 29
L. B. Auerbach, A. K. Mann, W. K. McFarlane, and F. J. Sciulli, Phys. Rev. Letters 19, 464 (1967)
Omitted endnote
R. Adair and L. Leipuner, Phys. Letters 12, 67 (1964)
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[c1] T. D. Lee and C. S. Wu, Ann. Rev. Nucl. Sci. 15, 381 (1965)

[c2] D. Cutts, R. Stiening, C. Wiegand, and M. Deutsch, Phys. Rev. 184, 1380 (1969)

[c3] S. W. MacDowell, Nuovo Cimento 6, 1445 (1957)

[c4] A. Firestone, J. K. Kim, J. Lach, J. Sandweiss, H. D. Taft, and P. Guidoni, Phys. Rev. Letters 18, 176 (1967)

[c5] J. P. Lowys, B. Aubert, L. M. Chounet, and C. Pascaud, Phys. Letters 24B, 75 (1967)

[c6] J. A. Kadyk, J. H. Chan, D. Drijard, Y. Oren, and B. M. Sheldon, Phys. Rev. Letters 19, 597 (1967)

[c7] S. H. Aronson and K. W. Chen, Phys. Rev. Letters 20, 287 (1968)

[c8] P. Basile, J. W. Cronin, B. Thevenet, R. Turlay, S. Zylberajch, and A. Zylberszteijn, Phys. Letters 26B, 542 (1968)

[c9] [17]

[c10] S. L. Marateck and S. P. Rosen, Phys. Letters 29B, 497, (1969)

[c11] K. K. Young, M. J. Longo, and J. A. Helland, Phys. Rev. Letters 18, 806 (1967)

[c12] N. Cabibbo, in Proceedings of the Thirteenth International Conference on High-Energy Physics, Berkeley, California, 1966 (University of California Press, Berkeley, 1967), p. 29

[c13] L. B. Auerbach, A. K. Mann, W. K. McFarlane, and F. J. Sciulli, Phys. Rev. Letters 19, 464 (1967)

[c14] Omitted endnote

[c15] R. Adair and L. Leipuner, Phys. Letters 12, 67 (1964)

[c16] C. Rubbia, in Proceedings of the Topical Conference on Weak Interactions, CERN, 1969, p. 227 (unpublished) (CERN Report No. 69-7, CERN, Scientific Information Service, Geneva)

[c17] W. J. Willis, in Proceedings of the International Conference on Elementary Particles, Heidelberg, 1967 (North-Holland, Amsterdam, 1968), p. 273

[c18] D. Haidt, J. Stein, S. Natali, G. Piscitelli, F. Romano, J. Lemonne, R. Møllerud, T. I. Pedersen, S. N. Tovey, V. Brisson, L. Kluberg, P. Petiau, C. D. Esveld, R. T. Van deWalle, B. Aubert, L. M. Chounet, Dong Le, J. P. Lowys, E. Calimani, S. Ciampolillo, F. Mattioli, F. Sconza, D. Gamba, and A. Marzari-Chiesa, Phys. Letters 29B, 696 (1969)

[c19] M. M. Block, E. M. Harth, and R. M. Sternheimer, Phys. Rev. 100, 324 (1955)

[c20] P. A. Piroué and A. J. S. Smith, Phys. Rev. 148, 1315 (1966)

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Experimental Study of the ${K_{μ 3}}^{0}$ Form Factors

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Experimental Study of the ${K_{μ 3}}^{0}$ Form Factors