A measurement of the τ lepton lifetime

C. Kleinwort, J. Allison, K. Ambrus, R. J. Barlow, W. Bartel, S. Bethke, C. K. Bowdery, S. L. Cartwright, J. Chrin, D. Clarke, A. Dieckmann, I. P. Duerdoth, G. Eckerlin, E. Elsen, R. Felst, A. J. Finch, F. Foster, T. Greenshaw, J. Hagemann, D. HaidtJ. Heintze, G. Heinzelmann, K. H. Hellenbrand, P. Hill, G. Hughes, H. Kado, K. Kawagoe, G. Knies, S. Komamiya, H. Krehbiel, J. v. Krogh, M. Kuhlen, F. K. Loebinger, A. A. Macbeth, N. Magnussen, R. Marshall, T. Mashimo, R. Meinke, R. P. Middleton, P. G. Murphy, B. Naroska, J. M. Nye, J. Olsson, F. Ould-Saada, R. Ramcke, H. Rieseberg, D. Schmidt, H. v.d. Schmidt, L. Smolik, U. Schneekloth, J. A.J. Skard, J. Spitzer, P. Steffen, K. Stephens, H. Takeda, A. Wagner, I. W. Walker, G. Weber, M. Zimmer, G. T. Zorn

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Abstract

The lifetime of the τ lepton was measured using two different techniques. From the impact parameter distribution of 3132 one prong decays ττ = (289±33±26) fs was obtained and from the decay length distribution of 648 three prong decays ττ = (309-34+35±11) fs. These results were combined to give a final value of ττ = (301±29) fs.

Original languageEnglish
Pages (from-to)7-15
Number of pages9
JournalZeitschrift für Physik C Particles and Fields
Volume42
Issue number1
DOIs
Publication statusPublished - 1989 Mar

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Kleinwort, C., Allison, J., Ambrus, K., Barlow, R. J., Bartel, W., Bethke, S., Bowdery, C. K., Cartwright, S. L., Chrin, J., Clarke, D., Dieckmann, A., Duerdoth, I. P., Eckerlin, G., Elsen, E., Felst, R., Finch, A. J., Foster, F., Greenshaw, T., Hagemann, J., ... Zorn, G. T. (1989). A measurement of the τ lepton lifetime. Zeitschrift für Physik C Particles and Fields, 42(1), 7-15. https://doi.org/10.1007/BF01565124