Tau-lepton production and decay at Petra energies

W. Bartel, L. Becker, D. Cords, R. Felst, D. Haidt, G. Knies, H. Krehbiel, P. Laurikainen, N. Magnussen, R. Meinke, B. Naroska, J. Olsson, D. Schmidt, P. Steffen, G. Dietrich, J. Hagemann, G. Heinzelmann, H. Kado, K. Kawagoe, C. Kleinwort & 51 others M. Kuhlen, A. Petersen, R. Ramcke, U. Schneekloth, G. Weber, K. Ambrus, S. Bethke, A. Dieckmann, E. Elsen, J. Heintze, K. H. Hellenbrand, Sachio Komamiya, J. Von Krogh, P. Lennert, H. Matsumura, H. Rieseberg, J. Spitzer, A. Wagner, C. K. Bowdery, A. J. Finch, F. Foster, G. Hughes, J. M. Nye, J. Allison, A. H. Ball, R. J. Barlow, J. Chrin, I. P. Duerdoth, T. Greenshaw, P. Hill, F. K. Loebinger, A. A. Macbeth, H. McCann, H. E. Mills, P. G. Murphy, K. Stephens, P. Warming, R. G. Glasser, J. A.J. Skard, S. R. Wagner, G. T. Zorn, S. L. Cartwright, D. Clarke, R. Marshall, R. P. Middleton, T. Kawamoto, T. Kobayashi, H. Takeda, M. Nozaki, T. Takeshita, S. Yamada

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The production and decay of τ-pairs was studied with the JADE detector at PETRA at center-of-mass energies of 30 ≤√s ≤ 46.78 GeV. The total production cross section for τ-pairs agreed with QED predictions to order α3. Lower limits on QED cut-off parameters of Λ+ > 285 GeV and Λ- > 210 GeV at 95% confidence level were ontained. The decay branching fractions into one and three charged particles were determined to be (86.1 ± 0.5 ± 0.9)% and (13.6±0.5 ±0.80)%. In the angular distributions a forward-backward asymmetry was observed, from which the axial-vector weak charge to the τ was determined to be aτ = -0.74 ± 0.22 in agreement with the standard model. An analysis of the process e+e- → τ+τ-γ showed agreement with QED calculations to O(α3).

Original languageEnglish
Pages (from-to)188-196
Number of pages9
JournalPhysics Letters B
Volume161
Issue number1-3
DOIs
Publication statusPublished - 1985 Oct 24
Externally publishedYes

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leptons
decay
center of mass
confidence
charged particles
cut-off
angular distribution
asymmetry
energy
detectors
cross sections
predictions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Bartel, W., Becker, L., Cords, D., Felst, R., Haidt, D., Knies, G., ... Yamada, S. (1985). Tau-lepton production and decay at Petra energies. Physics Letters B, 161(1-3), 188-196. https://doi.org/10.1016/0370-2693(85)90634-3

Tau-lepton production and decay at Petra energies. / Bartel, W.; Becker, L.; Cords, D.; Felst, R.; Haidt, D.; Knies, G.; Krehbiel, H.; Laurikainen, P.; Magnussen, N.; Meinke, R.; Naroska, B.; Olsson, J.; Schmidt, D.; Steffen, P.; Dietrich, G.; Hagemann, J.; Heinzelmann, G.; Kado, H.; Kawagoe, K.; Kleinwort, C.; Kuhlen, M.; Petersen, A.; Ramcke, R.; Schneekloth, U.; Weber, G.; Ambrus, K.; Bethke, S.; Dieckmann, A.; Elsen, E.; Heintze, J.; Hellenbrand, K. H.; Komamiya, Sachio; Von Krogh, J.; Lennert, P.; Matsumura, H.; Rieseberg, H.; Spitzer, J.; Wagner, A.; Bowdery, C. K.; Finch, A. J.; Foster, F.; Hughes, G.; Nye, J. M.; Allison, J.; Ball, A. H.; Barlow, R. J.; Chrin, J.; Duerdoth, I. P.; Greenshaw, T.; Hill, P.; Loebinger, F. K.; Macbeth, A. A.; McCann, H.; Mills, H. E.; Murphy, P. G.; Stephens, K.; Warming, P.; Glasser, R. G.; Skard, J. A.J.; Wagner, S. R.; Zorn, G. T.; Cartwright, S. L.; Clarke, D.; Marshall, R.; Middleton, R. P.; Kawamoto, T.; Kobayashi, T.; Takeda, H.; Nozaki, M.; Takeshita, T.; Yamada, S.

In: Physics Letters B, Vol. 161, No. 1-3, 24.10.1985, p. 188-196.

Research output: Contribution to journalArticle

Bartel, W, Becker, L, Cords, D, Felst, R, Haidt, D, Knies, G, Krehbiel, H, Laurikainen, P, Magnussen, N, Meinke, R, Naroska, B, Olsson, J, Schmidt, D, Steffen, P, Dietrich, G, Hagemann, J, Heinzelmann, G, Kado, H, Kawagoe, K, Kleinwort, C, Kuhlen, M, Petersen, A, Ramcke, R, Schneekloth, U, Weber, G, Ambrus, K, Bethke, S, Dieckmann, A, Elsen, E, Heintze, J, Hellenbrand, KH, Komamiya, S, Von Krogh, J, Lennert, P, Matsumura, H, Rieseberg, H, Spitzer, J, Wagner, A, Bowdery, CK, Finch, AJ, Foster, F, Hughes, G, Nye, JM, Allison, J, Ball, AH, Barlow, RJ, Chrin, J, Duerdoth, IP, Greenshaw, T, Hill, P, Loebinger, FK, Macbeth, AA, McCann, H, Mills, HE, Murphy, PG, Stephens, K, Warming, P, Glasser, RG, Skard, JAJ, Wagner, SR, Zorn, GT, Cartwright, SL, Clarke, D, Marshall, R, Middleton, RP, Kawamoto, T, Kobayashi, T, Takeda, H, Nozaki, M, Takeshita, T & Yamada, S 1985, 'Tau-lepton production and decay at Petra energies', Physics Letters B, vol. 161, no. 1-3, pp. 188-196. https://doi.org/10.1016/0370-2693(85)90634-3
Bartel W, Becker L, Cords D, Felst R, Haidt D, Knies G et al. Tau-lepton production and decay at Petra energies. Physics Letters B. 1985 Oct 24;161(1-3):188-196. https://doi.org/10.1016/0370-2693(85)90634-3
Bartel, W. ; Becker, L. ; Cords, D. ; Felst, R. ; Haidt, D. ; Knies, G. ; Krehbiel, H. ; Laurikainen, P. ; Magnussen, N. ; Meinke, R. ; Naroska, B. ; Olsson, J. ; Schmidt, D. ; Steffen, P. ; Dietrich, G. ; Hagemann, J. ; Heinzelmann, G. ; Kado, H. ; Kawagoe, K. ; Kleinwort, C. ; Kuhlen, M. ; Petersen, A. ; Ramcke, R. ; Schneekloth, U. ; Weber, G. ; Ambrus, K. ; Bethke, S. ; Dieckmann, A. ; Elsen, E. ; Heintze, J. ; Hellenbrand, K. H. ; Komamiya, Sachio ; Von Krogh, J. ; Lennert, P. ; Matsumura, H. ; Rieseberg, H. ; Spitzer, J. ; Wagner, A. ; Bowdery, C. K. ; Finch, A. J. ; Foster, F. ; Hughes, G. ; Nye, J. M. ; Allison, J. ; Ball, A. H. ; Barlow, R. J. ; Chrin, J. ; Duerdoth, I. P. ; Greenshaw, T. ; Hill, P. ; Loebinger, F. K. ; Macbeth, A. A. ; McCann, H. ; Mills, H. E. ; Murphy, P. G. ; Stephens, K. ; Warming, P. ; Glasser, R. G. ; Skard, J. A.J. ; Wagner, S. R. ; Zorn, G. T. ; Cartwright, S. L. ; Clarke, D. ; Marshall, R. ; Middleton, R. P. ; Kawamoto, T. ; Kobayashi, T. ; Takeda, H. ; Nozaki, M. ; Takeshita, T. ; Yamada, S. / Tau-lepton production and decay at Petra energies. In: Physics Letters B. 1985 ; Vol. 161, No. 1-3. pp. 188-196.
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abstract = "The production and decay of τ-pairs was studied with the JADE detector at PETRA at center-of-mass energies of 30 ≤√s ≤ 46.78 GeV. The total production cross section for τ-pairs agreed with QED predictions to order α3. Lower limits on QED cut-off parameters of Λ+ > 285 GeV and Λ- > 210 GeV at 95{\%} confidence level were ontained. The decay branching fractions into one and three charged particles were determined to be (86.1 ± 0.5 ± 0.9){\%} and (13.6±0.5 ±0.80){\%}. In the angular distributions a forward-backward asymmetry was observed, from which the axial-vector weak charge to the τ was determined to be aτ = -0.74 ± 0.22 in agreement with the standard model. An analysis of the process e+e- → τ+τ-γ showed agreement with QED calculations to O(α3).",
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TY - JOUR

T1 - Tau-lepton production and decay at Petra energies

AU - Bartel, W.

AU - Becker, L.

AU - Cords, D.

AU - Felst, R.

AU - Haidt, D.

AU - Knies, G.

AU - Krehbiel, H.

AU - Laurikainen, P.

AU - Magnussen, N.

AU - Meinke, R.

AU - Naroska, B.

AU - Olsson, J.

AU - Schmidt, D.

AU - Steffen, P.

AU - Dietrich, G.

AU - Hagemann, J.

AU - Heinzelmann, G.

AU - Kado, H.

AU - Kawagoe, K.

AU - Kleinwort, C.

AU - Kuhlen, M.

AU - Petersen, A.

AU - Ramcke, R.

AU - Schneekloth, U.

AU - Weber, G.

AU - Ambrus, K.

AU - Bethke, S.

AU - Dieckmann, A.

AU - Elsen, E.

AU - Heintze, J.

AU - Hellenbrand, K. H.

AU - Komamiya, Sachio

AU - Von Krogh, J.

AU - Lennert, P.

AU - Matsumura, H.

AU - Rieseberg, H.

AU - Spitzer, J.

AU - Wagner, A.

AU - Bowdery, C. K.

AU - Finch, A. J.

AU - Foster, F.

AU - Hughes, G.

AU - Nye, J. M.

AU - Allison, J.

AU - Ball, A. H.

AU - Barlow, R. J.

AU - Chrin, J.

AU - Duerdoth, I. P.

AU - Greenshaw, T.

AU - Hill, P.

AU - Loebinger, F. K.

AU - Macbeth, A. A.

AU - McCann, H.

AU - Mills, H. E.

AU - Murphy, P. G.

AU - Stephens, K.

AU - Warming, P.

AU - Glasser, R. G.

AU - Skard, J. A.J.

AU - Wagner, S. R.

AU - Zorn, G. T.

AU - Cartwright, S. L.

AU - Clarke, D.

AU - Marshall, R.

AU - Middleton, R. P.

AU - Kawamoto, T.

AU - Kobayashi, T.

AU - Takeda, H.

AU - Nozaki, M.

AU - Takeshita, T.

AU - Yamada, S.

PY - 1985/10/24

Y1 - 1985/10/24

N2 - The production and decay of τ-pairs was studied with the JADE detector at PETRA at center-of-mass energies of 30 ≤√s ≤ 46.78 GeV. The total production cross section for τ-pairs agreed with QED predictions to order α3. Lower limits on QED cut-off parameters of Λ+ > 285 GeV and Λ- > 210 GeV at 95% confidence level were ontained. The decay branching fractions into one and three charged particles were determined to be (86.1 ± 0.5 ± 0.9)% and (13.6±0.5 ±0.80)%. In the angular distributions a forward-backward asymmetry was observed, from which the axial-vector weak charge to the τ was determined to be aτ = -0.74 ± 0.22 in agreement with the standard model. An analysis of the process e+e- → τ+τ-γ showed agreement with QED calculations to O(α3).

AB - The production and decay of τ-pairs was studied with the JADE detector at PETRA at center-of-mass energies of 30 ≤√s ≤ 46.78 GeV. The total production cross section for τ-pairs agreed with QED predictions to order α3. Lower limits on QED cut-off parameters of Λ+ > 285 GeV and Λ- > 210 GeV at 95% confidence level were ontained. The decay branching fractions into one and three charged particles were determined to be (86.1 ± 0.5 ± 0.9)% and (13.6±0.5 ±0.80)%. In the angular distributions a forward-backward asymmetry was observed, from which the axial-vector weak charge to the τ was determined to be aτ = -0.74 ± 0.22 in agreement with the standard model. An analysis of the process e+e- → τ+τ-γ showed agreement with QED calculations to O(α3).

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U2 - 10.1016/0370-2693(85)90634-3

DO - 10.1016/0370-2693(85)90634-3

M3 - Article

VL - 161

SP - 188

EP - 196

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

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

SN - 0370-2693

IS - 1-3

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