Measurement of the reaction e+e- → τ+τ- at √s = 29 GeV

K. K. Gan; I. Beltrami; B. G. Bylsma; R. Debonte; D. Koltick; F. J. Loeffler; E. H. Low; R. L. McIlwain; D. H. Miller; C. R. Ng; P. P. Ong; L. K. Rangan; E. I. Shibata; R. J. Wilson; M. Derrick; E. Fernandez; R. Fries; L. Hyman; P. Kooijman; J. S. Loos; B. Musgrave; L. E. Price; J. Schlereth; K. Sugano; J. M. Weiss; D. E. Wood; G. Baranko; P. Baringer; D. Blockus; B. Brabson; G. E. Forden; S. W. Gray; C. Jung; H. Neal; H. Ogren; D. R. Rust; M. Valdata-Nappi; C. Akerlof; G. Bonvicini; J. Chapman; D. Errede; N. Harnew; P. Kesten; S. Kooijman; D. I. Meyer; D. Nitz; D. Rubin; A. A. Seidl; R. Thun; T. Trinko; M. Willutzky; B. Cork; L. Keller; J. Va'vra

doi:10.1016/0370-2693(85)91453-4

Measurement of the reaction e⁺e^- → τ⁺τ^- at √s = 29 GeV

K. K. Gan
, I. Beltrami
, B. G. Bylsma
, R. Debonte
, D. Koltick
, F. J. Loeffler
, E. H. Low
, R. L. McIlwain
, D. H. Miller
, C. R. Ng
, P. P. Ong
, L. K. Rangan
, E. I. Shibata
, R. J. Wilson
, M. Derrick
, E. Fernandez
, R. Fries
, L. Hyman
, P. Kooijman
, J. S. Loos

B. Musgrave, L. E. Price, J. Schlereth, K. Sugano, J. M. Weiss, D. E. Wood, G. Baranko, P. Baringer, D. Blockus, B. Brabson, G. E. Forden, S. W. Gray, C. Jung, H. Neal, H. Ogren, D. R. Rust, M. Valdata-Nappi, C. Akerlof, G. Bonvicini, J. Chapman, D. Errede, N. Harnew, P. Kesten, S. Kooijman, D. I. Meyer, D. Nitz, D. Rubin, A. A. Seidl, R. Thun, T. Trinko, M. Willutzky, B. Cork, L. Keller, J. Va'vra

Physics and Astronomy

Purdue University
Argonne National Laboratory
Indiana University Bloomington
University of Michigan, Ann Arbor
Lawrence Berkeley National Laboratory
SLAC National Accelerator Laboratory

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The reaction e⁺e^- → τ⁺τ^- has been measured using the high resolution spectrometer at PEP. The angular distribution shows a forward-backward asymmetry of -(6.1±2.3±0.5)%, corresponding to an axial-vector coupling if g_a^τg_a^e = 0.28 ±0.11± 0.03, in good agreement with the standard model of electroweak interactions. The measured cross section yields ifR_ττ = 1.10± 0.03±0.04, consistent with QED and giving QED cutoff parameters of Λ₊>92 GeV and Λ_->246 GeV at 95% C.L.

Original language	English
Pages (from-to)	116-120
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	153
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(85)91453-4
State	Published - Mar 21 1985

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Gan, K. K., Beltrami, I., Bylsma, B. G., Debonte, R., Koltick, D., Loeffler, F. J., Low, E. H., McIlwain, R. L., Miller, D. H., Ng, C. R., Ong, P. P., Rangan, L. K., Shibata, E. I., Wilson, R. J., Derrick, M., Fernandez, E., Fries, R., Hyman, L., Kooijman, P., ... Va'vra, J. (1985). Measurement of the reaction e⁺e^- → τ⁺τ^- at √s = 29 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 153(1-2), 116-120. https://doi.org/10.1016/0370-2693(85)91453-4

@article{5b6f05459b0142b5bfa303ecdae26e6b,

title = "Measurement of the reaction e+e- → τ+τ- at √s = 29 GeV",

abstract = "The reaction e+e- → τ+τ- has been measured using the high resolution spectrometer at PEP. The angular distribution shows a forward-backward asymmetry of -(6.1±2.3±0.5)\%, corresponding to an axial-vector coupling if gaτgae = 0.28 ±0.11± 0.03, in good agreement with the standard model of electroweak interactions. The measured cross section yields ifRττ = 1.10± 0.03±0.04, consistent with QED and giving QED cutoff parameters of Λ+>92 GeV and Λ->246 GeV at 95\% C.L.",

author = "Gan, \{K. K.\} and I. Beltrami and Bylsma, \{B. G.\} and R. Debonte and D. Koltick and Loeffler, \{F. J.\} and Low, \{E. H.\} and McIlwain, \{R. L.\} and Miller, \{D. H.\} and Ng, \{C. R.\} and Ong, \{P. P.\} and Rangan, \{L. K.\} and Shibata, \{E. I.\} and Wilson, \{R. J.\} and M. Derrick and E. Fernandez and R. Fries and L. Hyman and P. Kooijman and Loos, \{J. S.\} and B. Musgrave and Price, \{L. E.\} and J. Schlereth and K. Sugano and Weiss, \{J. M.\} and Wood, \{D. E.\} and G. Baranko and P. Baringer and D. Blockus and B. Brabson and Forden, \{G. E.\} and Gray, \{S. W.\} and C. Jung and H. Neal and H. Ogren and Rust, \{D. R.\} and M. Valdata-Nappi and C. Akerlof and G. Bonvicini and J. Chapman and D. Errede and N. Harnew and P. Kesten and S. Kooijman and Meyer, \{D. I.\} and D. Nitz and D. Rubin and Seidl, \{A. A.\} and R. Thun and T. Trinko and M. Willutzky and B. Cork and L. Keller and J. Va'vra",

year = "1985",

month = mar,

day = "21",

doi = "10.1016/0370-2693(85)91453-4",

language = "English",

volume = "153",

pages = "116--120",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "1-2",

}

Gan, KK, Beltrami, I, Bylsma, BG, Debonte, R, Koltick, D, Loeffler, FJ, Low, EH, McIlwain, RL, Miller, DH, Ng, CR, Ong, PP, Rangan, LK, Shibata, EI, Wilson, RJ, Derrick, M, Fernandez, E, Fries, R, Hyman, L, Kooijman, P, Loos, JS, Musgrave, B, Price, LE, Schlereth, J, Sugano, K, Weiss, JM, Wood, DE, Baranko, G, Baringer, P, Blockus, D, Brabson, B, Forden, GE, Gray, SW, Jung, C, Neal, H, Ogren, H, Rust, DR, Valdata-Nappi, M, Akerlof, C, Bonvicini, G, Chapman, J, Errede, D, Harnew, N, Kesten, P, Kooijman, S, Meyer, DI, Nitz, D, Rubin, D, Seidl, AA, Thun, R, Trinko, T, Willutzky, M, Cork, B, Keller, L & Va'vra, J 1985, 'Measurement of the reaction e⁺e^- → τ⁺τ^- at √s = 29 GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 153, no. 1-2, pp. 116-120. https://doi.org/10.1016/0370-2693(85)91453-4

TY - JOUR

T1 - Measurement of the reaction e+e- → τ+τ- at √s = 29 GeV

AU - Gan, K. K.

AU - Beltrami, I.

AU - Bylsma, B. G.

AU - Debonte, R.

AU - Koltick, D.

AU - Loeffler, F. J.

AU - Low, E. H.

AU - McIlwain, R. L.

AU - Miller, D. H.

AU - Ng, C. R.

AU - Ong, P. P.

AU - Rangan, L. K.

AU - Shibata, E. I.

AU - Wilson, R. J.

AU - Derrick, M.

AU - Fernandez, E.

AU - Fries, R.

AU - Hyman, L.

AU - Kooijman, P.

AU - Loos, J. S.

AU - Musgrave, B.

AU - Price, L. E.

AU - Schlereth, J.

AU - Sugano, K.

AU - Weiss, J. M.

AU - Wood, D. E.

AU - Baranko, G.

AU - Baringer, P.

AU - Blockus, D.

AU - Brabson, B.

AU - Forden, G. E.

AU - Gray, S. W.

AU - Jung, C.

AU - Neal, H.

AU - Ogren, H.

AU - Rust, D. R.

AU - Valdata-Nappi, M.

AU - Akerlof, C.

AU - Bonvicini, G.

AU - Chapman, J.

AU - Errede, D.

AU - Harnew, N.

AU - Kesten, P.

AU - Kooijman, S.

AU - Meyer, D. I.

AU - Nitz, D.

AU - Rubin, D.

AU - Seidl, A. A.

AU - Thun, R.

AU - Trinko, T.

AU - Willutzky, M.

AU - Cork, B.

AU - Keller, L.

AU - Va'vra, J.

PY - 1985/3/21

Y1 - 1985/3/21

N2 - The reaction e+e- → τ+τ- has been measured using the high resolution spectrometer at PEP. The angular distribution shows a forward-backward asymmetry of -(6.1±2.3±0.5)%, corresponding to an axial-vector coupling if gaτgae = 0.28 ±0.11± 0.03, in good agreement with the standard model of electroweak interactions. The measured cross section yields ifRττ = 1.10± 0.03±0.04, consistent with QED and giving QED cutoff parameters of Λ+>92 GeV and Λ->246 GeV at 95% C.L.

AB - The reaction e+e- → τ+τ- has been measured using the high resolution spectrometer at PEP. The angular distribution shows a forward-backward asymmetry of -(6.1±2.3±0.5)%, corresponding to an axial-vector coupling if gaτgae = 0.28 ±0.11± 0.03, in good agreement with the standard model of electroweak interactions. The measured cross section yields ifRττ = 1.10± 0.03±0.04, consistent with QED and giving QED cutoff parameters of Λ+>92 GeV and Λ->246 GeV at 95% C.L.

UR - https://www.scopus.com/pages/publications/0011690556

U2 - 10.1016/0370-2693(85)91453-4

DO - 10.1016/0370-2693(85)91453-4

M3 - Article

AN - SCOPUS:0011690556

SN - 0370-2693

VL - 153

SP - 116

EP - 120

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Measurement of the reaction e⁺e^- → τ⁺τ^- at √s = 29 GeV

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