Properties of the proposed τ charged lepton

M. L. Perl; G. L. Feldman; G. S. Abrams; M. S. Alam; A. M. Boyarski; M. Breidenbach; J. Dorfan; W. Chinowsky; G. Goldhaber; G. Hanson; J. A. Jaros; J. A. Kadyk; D. Lüke; V. Lüth; R. J. Madaras; H. K. Nguyen; J. M. Paterson; I. Peruzzi; M. Piccolo; T. P. Pun; P. A. Rapidis; B. Richter; W. Tanenbaum; J. E. Wiss

doi:10.1016/0370-2693(77)90421-X

Properties of the proposed τ charged lepton

M. L. Perl, G. L. Feldman, G. S. Abrams, M. S. Alam, A. M. Boyarski, M. Breidenbach, J. Dorfan, W. Chinowsky, G. Goldhaber, G. Hanson, J. A. Jaros, J. A. Kadyk, D. Lüke, V. Lüth, R. J. Madaras, H. K. Nguyen, J. M. Paterson, I. Peruzzi, M. Piccolo, T. P. PunP. A. Rapidis, B. Richter, W. Tanenbaum, J. E. Wiss

Physics

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Abstract

The anomalous eμ and 2-prong μx events produced in e⁺e^- annihilation are used to determine the properties of the proposed τ charged lepton. We find the τ mass is 1.90 ± 0.10 GeV/c²; the mass of the associated neutrino, ν_τ, is less than 0.6 GeV/c² with 95% confidence; V - A coupling is favored over V + A coupling for the τ - ν_τ current; and the leptonic branching ratios are 0.186 ± 0.010 ± 0.028 from the eμ events and 0.175 ± 0.027 ± 0.030 from the μx events where the first error is statistical and the second is systematic.

Original language	English (US)
Pages (from-to)	487-490
Number of pages	4
Journal	Physics Letters B
Volume	70
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(77)90421-X
State	Published - Oct 24 1977

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Perl, M. L., Feldman, G. L., Abrams, G. S., Alam, M. S., Boyarski, A. M., Breidenbach, M., Dorfan, J., Chinowsky, W., Goldhaber, G., Hanson, G., Jaros, J. A., Kadyk, J. A., Lüke, D., Lüth, V., Madaras, R. J., Nguyen, H. K., Paterson, J. M., Peruzzi, I., Piccolo, M., ... Wiss, J. E. (1977). Properties of the proposed τ charged lepton. Physics Letters B, 70(4), 487-490. https://doi.org/10.1016/0370-2693(77)90421-X

Perl, ML, Feldman, GL, Abrams, GS, Alam, MS, Boyarski, AM, Breidenbach, M, Dorfan, J, Chinowsky, W, Goldhaber, G, Hanson, G, Jaros, JA, Kadyk, JA, Lüke, D, Lüth, V, Madaras, RJ, Nguyen, HK, Paterson, JM, Peruzzi, I, Piccolo, M, Pun, TP, Rapidis, PA, Richter, B, Tanenbaum, W & Wiss, JE 1977, 'Properties of the proposed τ charged lepton', Physics Letters B, vol. 70, no. 4, pp. 487-490. https://doi.org/10.1016/0370-2693(77)90421-X

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title = "Properties of the proposed τ charged lepton",

abstract = "The anomalous eμ and 2-prong μx events produced in e+e- annihilation are used to determine the properties of the proposed τ charged lepton. We find the τ mass is 1.90 ± 0.10 GeV/c2; the mass of the associated neutrino, ντ, is less than 0.6 GeV/c2 with 95% confidence; V - A coupling is favored over V + A coupling for the τ - ντ current; and the leptonic branching ratios are 0.186 ± 0.010 ± 0.028 from the eμ events and 0.175 ± 0.027 ± 0.030 from the μx events where the first error is statistical and the second is systematic.",

author = "Perl, {M. L.} and Feldman, {G. L.} and Abrams, {G. S.} and Alam, {M. S.} and Boyarski, {A. M.} and M. Breidenbach and J. Dorfan and W. Chinowsky and G. Goldhaber and G. Hanson and Jaros, {J. A.} and Kadyk, {J. A.} and D. L{\"u}ke and V. L{\"u}th and Madaras, {R. J.} and Nguyen, {H. K.} and Paterson, {J. M.} and I. Peruzzi and M. Piccolo and Pun, {T. P.} and Rapidis, {P. A.} and B. Richter and W. Tanenbaum and Wiss, {J. E.}",

note = "Funding Information: * Work supported by the Energy Research and Development Administration.",

year = "1977",

month = oct,

day = "24",

doi = "10.1016/0370-2693(77)90421-X",

language = "English (US)",

volume = "70",

pages = "487--490",

journal = "Physics Letters B",

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TY - JOUR

T1 - Properties of the proposed τ charged lepton

AU - Perl, M. L.

AU - Feldman, G. L.

AU - Abrams, G. S.

AU - Alam, M. S.

AU - Boyarski, A. M.

AU - Breidenbach, M.

AU - Dorfan, J.

AU - Chinowsky, W.

AU - Goldhaber, G.

AU - Hanson, G.

AU - Jaros, J. A.

AU - Kadyk, J. A.

AU - Lüke, D.

AU - Lüth, V.

AU - Madaras, R. J.

AU - Nguyen, H. K.

AU - Paterson, J. M.

AU - Peruzzi, I.

AU - Piccolo, M.

AU - Pun, T. P.

AU - Rapidis, P. A.

AU - Richter, B.

AU - Tanenbaum, W.

AU - Wiss, J. E.

N1 - Funding Information: * Work supported by the Energy Research and Development Administration.

PY - 1977/10/24

Y1 - 1977/10/24

N2 - The anomalous eμ and 2-prong μx events produced in e+e- annihilation are used to determine the properties of the proposed τ charged lepton. We find the τ mass is 1.90 ± 0.10 GeV/c2; the mass of the associated neutrino, ντ, is less than 0.6 GeV/c2 with 95% confidence; V - A coupling is favored over V + A coupling for the τ - ντ current; and the leptonic branching ratios are 0.186 ± 0.010 ± 0.028 from the eμ events and 0.175 ± 0.027 ± 0.030 from the μx events where the first error is statistical and the second is systematic.

AB - The anomalous eμ and 2-prong μx events produced in e+e- annihilation are used to determine the properties of the proposed τ charged lepton. We find the τ mass is 1.90 ± 0.10 GeV/c2; the mass of the associated neutrino, ντ, is less than 0.6 GeV/c2 with 95% confidence; V - A coupling is favored over V + A coupling for the τ - ντ current; and the leptonic branching ratios are 0.186 ± 0.010 ± 0.028 from the eμ events and 0.175 ± 0.027 ± 0.030 from the μx events where the first error is statistical and the second is systematic.

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U2 - 10.1016/0370-2693(77)90421-X

DO - 10.1016/0370-2693(77)90421-X

M3 - Article

AN - SCOPUS:0001307953

SN - 0370-2693

VL - 70

SP - 487

EP - 490

JO - Physics Letters B

JF - Physics Letters B

IS - 4

ER -

Properties of the proposed τ charged lepton

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