Measurement of the tau lepton lifetime

D. Decamp; B. Deschizeaux; C. Goy; J. P. Lees; M. N. Minard; R. Alemany; F. Ariztizabal; J. M. Crespo; M. Delfino; E. Fernandez; V. Gaitan; Ll Garrido; Ll M. Mir; A. Pacheco; A. Pascual; D. Creanza; M. de Palma; A. Farilla; G. Iaselli; G. Maggi; M. Maggi; S. Natali; S. Nuzzo; M. Quattromini; A. Ranieri; G. Raso; F. Romano; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; G. Zito; Y. Gao; H. Hu; D. Huang; X. Huang; J. Lin; J. Lou; C. Qiao; T. Wang; Y. Xie; D. Xu; R. Xu; J. Zhang; W. Zhao; W. B. Atwood; L. A.T. Bauerdick; E. Blucher; G. Bonvicini; F. Bossi; J. Boudreau; T. H. Burnett; H. Drevermann; R. W. Forty; R. Hagelberg; S. Haywood; J. Hilgart; R. Jacobsen; B. Jost; M. Kasemann; J. Knobloch; E. Lançon; I. Lehraus; T. Lohse; A. Lusiani; M. Martinez; P. Mato; T. Mattison; H. Meinhard; S. Menary; T. Meyer; A. Minten; A. Miotto; R. Miquel; H. G. Moser; J. Nash; P. Palazzi; J. A. Perlas; F. Ranjard; G. Redlinger; L. Rolandi; A. Roth; J. Rothberg; T. Ruan; M. Saich; D. Schlatter; M. Schmelling; W. Tejessy; H. Wachsmuth; W. Wiedenmann; W. Witzeling; J. Wotschack; Z. Ajaltouni; F. Badaud; M. Bardadin-Otwinowska; A. M. Bencheikh; R. El Fellous; A. Falvard; P. Gay; C. Guicheney

doi:10.1016/0370-2693(92)90413-X

Measurement of the tau lepton lifetime

D. Decamp, B. Deschizeaux, C. Goy, J. P. Lees, M. N. Minard, R. Alemany, F. Ariztizabal, J. M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll Garrido, Ll M. Mir, A. Pacheco, A. Pascual, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. MaggiM. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W. B. Atwood, L. A.T. Bauerdick, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, T. H. Burnett, H. Drevermann, R. W. Forty, R. Hagelberg, S. Haywood, J. Hilgart, R. Jacobsen, B. Jost, M. Kasemann, J. Knobloch, E. Lançon, I. Lehraus, T. Lohse, A. Lusiani, M. Martinez, P. Mato, T. Mattison, H. Meinhard, S. Menary, T. Meyer, A. Minten, A. Miotto, R. Miquel, H. G. Moser, J. Nash, P. Palazzi, J. A. Perlas, F. Ranjard, G. Redlinger, L. Rolandi, A. Roth, J. Rothberg, T. Ruan, M. Saich, D. Schlatter, M. Schmelling, W. Tejessy, H. Wachsmuth, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, F. Badaud, M. Bardadin-Otwinowska, A. M. Bencheikh, R. El Fellous, A. Falvard, P. Gay, C. Guicheney

Department of Physics

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25 Citations (Scopus)

Abstract

The mean lifetime of the τ lepton is measured from a sample of Z→τ+τ- decays observed with the ALEPH detector at LEP in 1989 and 1990. A new technique is applied to the events containing two one-prong decays: the lifetime is measured from the observed correlation between the impact parameters and azimuthal angles of the two charged tracks. The lifetime is also determined from measured vertex displacements for three-prong decays and track impact parameters for one-prong decays. The combined results is ττ=291 ± 13 (stat) ±6 (syst.) fs. © 1992.

Original language	English
Pages (from-to)	411-421
Journal	Physics Letters B
Volume	279
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(92)90413-X
Publication status	Published - 16 Apr 1992

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Decamp, D., Deschizeaux, B., Goy, C., Lees, J. P., Minard, M. N., Alemany, R., Ariztizabal, F., Crespo, J. M., Delfino, M., Fernandez, E., Gaitan, V., Garrido, L., Mir, L. M., Pacheco, A., Pascual, A., Creanza, D., de Palma, M., Farilla, A., Iaselli, G., ... Guicheney, C. (1992). Measurement of the tau lepton lifetime. Physics Letters B, 279(3-4), 411-421. https://doi.org/10.1016/0370-2693(92)90413-X

@article{b5d80cb2dd7e4e1580c527afade2960c,

title = "Measurement of the tau lepton lifetime",

abstract = "The mean lifetime of the τ lepton is measured from a sample of Z→τ+τ- decays observed with the ALEPH detector at LEP in 1989 and 1990. A new technique is applied to the events containing two one-prong decays: the lifetime is measured from the observed correlation between the impact parameters and azimuthal angles of the two charged tracks. The lifetime is also determined from measured vertex displacements for three-prong decays and track impact parameters for one-prong decays. The combined results is ττ=291 ± 13 (stat) ±6 (syst.) fs. {\textcopyright} 1992.",

author = "D. Decamp and B. Deschizeaux and C. Goy and Lees, {J. P.} and Minard, {M. N.} and R. Alemany and F. Ariztizabal and Crespo, {J. M.} and M. Delfino and E. Fernandez and V. Gaitan and Ll Garrido and Mir, {Ll M.} and A. Pacheco and A. Pascual and D. Creanza and {de Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and M. Maggi and S. Natali and S. Nuzzo and M. Quattromini and A. Ranieri and G. Raso and F. Romano and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and G. Zito and Y. Gao and H. Hu and D. Huang and X. Huang and J. Lin and J. Lou and C. Qiao and T. Wang and Y. Xie and D. Xu and R. Xu and J. Zhang and W. Zhao and Atwood, {W. B.} and Bauerdick, {L. A.T.} and E. Blucher and G. Bonvicini and F. Bossi and J. Boudreau and Burnett, {T. H.} and H. Drevermann and Forty, {R. W.} and R. Hagelberg and S. Haywood and J. Hilgart and R. Jacobsen and B. Jost and M. Kasemann and J. Knobloch and E. Lan{\c c}on and I. Lehraus and T. Lohse and A. Lusiani and M. Martinez and P. Mato and T. Mattison and H. Meinhard and S. Menary and T. Meyer and A. Minten and A. Miotto and R. Miquel and Moser, {H. G.} and J. Nash and P. Palazzi and Perlas, {J. A.} and F. Ranjard and G. Redlinger and L. Rolandi and A. Roth and J. Rothberg and T. Ruan and M. Saich and D. Schlatter and M. Schmelling and W. Tejessy and H. Wachsmuth and W. Wiedenmann and W. Witzeling and J. Wotschack and Z. Ajaltouni and F. Badaud and M. Bardadin-Otwinowska and Bencheikh, {A. M.} and {El Fellous}, R. and A. Falvard and P. Gay and C. Guicheney",

year = "1992",

month = apr,

day = "16",

doi = "10.1016/0370-2693(92)90413-X",

language = "English",

volume = "279",

pages = "411--421",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}

Decamp, D, Deschizeaux, B, Goy, C, Lees, JP, Minard, MN, Alemany, R, Ariztizabal, F, Crespo, JM , Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Mir, LM, Pacheco, A, Pascual, A, Creanza, D, de Palma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, WB, Bauerdick, LAT, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, TH, Drevermann, H, Forty, RW, Hagelberg, R, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Kasemann, M, Knobloch, J, Lançon, E, Lehraus, I, Lohse, T, Lusiani, A, Martinez, M, Mato, P, Mattison, T, Meinhard, H, Menary, S, Meyer, T, Minten, A, Miotto, A, Miquel, R, Moser, HG, Nash, J, Palazzi, P, Perlas, JA, Ranjard, F, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Ruan, T, Saich, M, Schlatter, D, Schmelling, M, Tejessy, W, Wachsmuth, H, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadin-Otwinowska, M, Bencheikh, AM, El Fellous, R, Falvard, A, Gay, P & Guicheney, C 1992, 'Measurement of the tau lepton lifetime', Physics Letters B, vol. 279, no. 3-4, pp. 411-421. https://doi.org/10.1016/0370-2693(92)90413-X

TY - JOUR

T1 - Measurement of the tau lepton lifetime

AU - Decamp, D.

AU - Deschizeaux, B.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Alemany, R.

AU - Ariztizabal, F.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Gaitan, V.

AU - Garrido, Ll

AU - Mir, Ll M.

AU - Pacheco, A.

AU - Pascual, A.

AU - Creanza, D.

AU - de Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Maggi, M.

AU - Natali, S.

AU - Nuzzo, S.

AU - Quattromini, M.

AU - Ranieri, A.

AU - Raso, G.

AU - Romano, F.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Zito, G.

AU - Gao, Y.

AU - Hu, H.

AU - Huang, D.

AU - Huang, X.

AU - Lin, J.

AU - Lou, J.

AU - Qiao, C.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhao, W.

AU - Atwood, W. B.

AU - Bauerdick, L. A.T.

AU - Blucher, E.

AU - Bonvicini, G.

AU - Bossi, F.

AU - Boudreau, J.

AU - Burnett, T. H.

AU - Drevermann, H.

AU - Forty, R. W.

AU - Hagelberg, R.

AU - Haywood, S.

AU - Hilgart, J.

AU - Jacobsen, R.

AU - Jost, B.

AU - Kasemann, M.

AU - Knobloch, J.

AU - Lançon, E.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lusiani, A.

AU - Martinez, M.

AU - Mato, P.

AU - Mattison, T.

AU - Meinhard, H.

AU - Menary, S.

AU - Meyer, T.

AU - Minten, A.

AU - Miotto, A.

AU - Miquel, R.

AU - Moser, H. G.

AU - Nash, J.

AU - Palazzi, P.

AU - Perlas, J. A.

AU - Ranjard, F.

AU - Redlinger, G.

AU - Rolandi, L.

AU - Roth, A.

AU - Rothberg, J.

AU - Ruan, T.

AU - Saich, M.

AU - Schlatter, D.

AU - Schmelling, M.

AU - Tejessy, W.

AU - Wachsmuth, H.

AU - Wiedenmann, W.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Badaud, F.

AU - Bardadin-Otwinowska, M.

AU - Bencheikh, A. M.

AU - El Fellous, R.

AU - Falvard, A.

AU - Gay, P.

AU - Guicheney, C.

PY - 1992/4/16

Y1 - 1992/4/16

N2 - The mean lifetime of the τ lepton is measured from a sample of Z→τ+τ- decays observed with the ALEPH detector at LEP in 1989 and 1990. A new technique is applied to the events containing two one-prong decays: the lifetime is measured from the observed correlation between the impact parameters and azimuthal angles of the two charged tracks. The lifetime is also determined from measured vertex displacements for three-prong decays and track impact parameters for one-prong decays. The combined results is ττ=291 ± 13 (stat) ±6 (syst.) fs. © 1992.

AB - The mean lifetime of the τ lepton is measured from a sample of Z→τ+τ- decays observed with the ALEPH detector at LEP in 1989 and 1990. A new technique is applied to the events containing two one-prong decays: the lifetime is measured from the observed correlation between the impact parameters and azimuthal angles of the two charged tracks. The lifetime is also determined from measured vertex displacements for three-prong decays and track impact parameters for one-prong decays. The combined results is ττ=291 ± 13 (stat) ±6 (syst.) fs. © 1992.

U2 - 10.1016/0370-2693(92)90413-X

DO - 10.1016/0370-2693(92)90413-X

M3 - Article

SN - 0370-2693

VL - 279

SP - 411

EP - 421

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Measurement of the tau lepton lifetime

Abstract

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