Measurement of the lifetime of the tau lepton

M. Acciarri; P. Achard; O. Adriani; M. Aguilar-Benitez; J. Alcaraz; G. Alemanni; J. Allaby; A. Aloisio; M. G. Alviggi; G. Ambrosi; H. Anderhub; V. P. Andreev; T. Angelescu; F. Anselmo; A. Arefiev; T. Azemoon; T. Aziz; P. Bagnaia; A. Bajo; L. Baksay; A. Balandras; S. Banerjee; Sw Banerjee; A. Barczyk; R. Barillère; L. Barone; P. Bartalini; M. Basile; R. Battiston; A. Bay; F. Becattini; U. Becker; F. Behner; L. Bellucci; R. Berbeco; J. Berdugo; P. Berges; B. Bertucci; B. L. Betev; S. Bhattacharya; M. Biasini; A. Biland; J. J. Blaising; S. C. Blyth; G. J. Bobbink; A. Böhm; L. Boldizsar; B. Borgia; D. Bourilkov; M. Bourquin; S. Braccini; J. G. Branson; V. Brigljevic; F. Brochu; A. Buffini; A. Buijs; J. D. Burger; W. J. Burger; X. D. Cai; M. Campanelli; M. Capell; G. Cara Romeo; G. Carlino; A. M. Cartacci; J. Casaus; G. Castellini; F. Cavallari; N. Cavallo; C. Cecchi; M. Cerrada; F. Cesaroni; M. Chamizo; Y. H. Chang; U. K. Chaturvedi; M. Chemarin; A. Chen; G. Chen; G. M. Chen; H. F. Chen; H. S. Chen; G. Chiefari; L. Cifarelli; F. Cindolo; C. Civinini; I. Clare; R. Clare; G. Coignet; A. P. Colijn; N. Colino; S. Costantini; F. Cotorobai; B. Cozzoni; B. De la Cruz; A. Csilling; S. Cucciarelli; T. S. Dai; J. A. Van Dalen

doi:10.1016/S0370-2693(00)00347-6

Measurement of the lifetime of the tau lepton

M. Acciarri, P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M. G. Alviggi, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelescu, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, A. Bajo, L. BaksayA. Balandras, S. Banerjee, Sw Banerjee, A. Barczyk, R. Barillère, L. Barone, P. Bartalini, M. Basile, R. Battiston, A. Bay, F. Becattini, U. Becker, F. Behner, L. Bellucci, R. Berbeco, J. Berdugo, P. Berges, B. Bertucci, B. L. Betev, S. Bhattacharya, M. Biasini, A. Biland, J. J. Blaising, S. C. Blyth, G. J. Bobbink, A. Böhm, L. Boldizsar, B. Borgia, D. Bourilkov, M. Bourquin, S. Braccini, J. G. Branson, V. Brigljevic, F. Brochu, A. Buffini, A. Buijs, J. D. Burger, W. J. Burger, X. D. Cai, M. Campanelli, M. Capell, G. Cara Romeo, G. Carlino, A. M. Cartacci, J. Casaus, G. Castellini, F. Cavallari, N. Cavallo, C. Cecchi, M. Cerrada, F. Cesaroni, M. Chamizo, Y. H. Chang, U. K. Chaturvedi, M. Chemarin, A. Chen, G. Chen, G. M. Chen, H. F. Chen, H. S. Chen, G. Chiefari, L. Cifarelli, F. Cindolo, C. Civinini, I. Clare, R. Clare, G. Coignet, A. P. Colijn, N. Colino, S. Costantini, F. Cotorobai, B. Cozzoni, B. De la Cruz, A. Csilling, S. Cucciarelli, T. S. Dai, J. A. Van Dalen

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Abstract

The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in τ(τ) = 293.2 ± 2.0 (stat) ± 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, α(s) is found to be α(s)(m(τ)/²) = 0.319 ± 0.015 (exp) ± 0.014 (theory). (C) 2000 Elsevier Science B.V.

Original language	English
Pages (from-to)	67-78
Number of pages	12
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	479
Issue number	1-3
DOIs	https://doi.org/10.1016/S0370-2693(00)00347-6
State	Published - 20 Apr 2000

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Acciarri, M., Achard, P., Adriani, O., Aguilar-Benitez, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M. G., Ambrosi, G., Anderhub, H., Andreev, V. P., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Bajo, A., ... Van Dalen, J. A. (2000). Measurement of the lifetime of the tau lepton. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 479(1-3), 67-78. https://doi.org/10.1016/S0370-2693(00)00347-6

@article{99d2564d41764f13a20a5c63aeb81f6a,

title = "Measurement of the lifetime of the tau lepton",

abstract = "The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in τ(τ) = 293.2 ± 2.0 (stat) ± 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, α(s) is found to be α(s)(m(τ)/2) = 0.319 ± 0.015 (exp) ± 0.014 (theory). (C) 2000 Elsevier Science B.V.",

author = "M. Acciarri and P. Achard and O. Adriani and M. Aguilar-Benitez and J. Alcaraz and G. Alemanni and J. Allaby and A. Aloisio and Alviggi, {M. G.} and G. Ambrosi and H. Anderhub and Andreev, {V. P.} and T. Angelescu and F. Anselmo and A. Arefiev and T. Azemoon and T. Aziz and P. Bagnaia and A. Bajo and L. Baksay and A. Balandras and S. Banerjee and Sw Banerjee and A. Barczyk and R. Barill{\`e}re and L. Barone and P. Bartalini and M. Basile and R. Battiston and A. Bay and F. Becattini and U. Becker and F. Behner and L. Bellucci and R. Berbeco and J. Berdugo and P. Berges and B. Bertucci and Betev, {B. L.} and S. Bhattacharya and M. Biasini and A. Biland and Blaising, {J. J.} and Blyth, {S. C.} and Bobbink, {G. J.} and A. B{\"o}hm and L. Boldizsar and B. Borgia and D. Bourilkov and M. Bourquin and S. Braccini and Branson, {J. G.} and V. Brigljevic and F. Brochu and A. Buffini and A. Buijs and Burger, {J. D.} and Burger, {W. J.} and Cai, {X. D.} and M. Campanelli and M. Capell and {Cara Romeo}, G. and G. Carlino and Cartacci, {A. M.} and J. Casaus and G. Castellini and F. Cavallari and N. Cavallo and C. Cecchi and M. Cerrada and F. Cesaroni and M. Chamizo and Chang, {Y. H.} and Chaturvedi, {U. K.} and M. Chemarin and A. Chen and G. Chen and Chen, {G. M.} and Chen, {H. F.} and Chen, {H. S.} and G. Chiefari and L. Cifarelli and F. Cindolo and C. Civinini and I. Clare and R. Clare and G. Coignet and Colijn, {A. P.} and N. Colino and S. Costantini and F. Cotorobai and B. Cozzoni and {De la Cruz}, B. and A. Csilling and S. Cucciarelli and Dai, {T. S.} and {Van Dalen}, {J. A.}",

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Acciarri, M, Achard, P, Adriani, O, Aguilar-Benitez, M, Alcaraz, J, Alemanni, G, Allaby, J, Aloisio, A, Alviggi, MG, Ambrosi, G, Anderhub, H, Andreev, VP, Angelescu, T, Anselmo, F, Arefiev, A, Azemoon, T, Aziz, T, Bagnaia, P, Bajo, A, Baksay, L, Balandras, A, Banerjee, S, Banerjee, S, Barczyk, A, Barillère, R, Barone, L, Bartalini, P, Basile, M, Battiston, R, Bay, A, Becattini, F, Becker, U, Behner, F, Bellucci, L, Berbeco, R, Berdugo, J, Berges, P, Bertucci, B, Betev, BL, Bhattacharya, S, Biasini, M, Biland, A, Blaising, JJ, Blyth, SC, Bobbink, GJ, Böhm, A, Boldizsar, L, Borgia, B, Bourilkov, D, Bourquin, M, Braccini, S, Branson, JG, Brigljevic, V, Brochu, F, Buffini, A, Buijs, A, Burger, JD, Burger, WJ, Cai, XD, Campanelli, M, Capell, M, Cara Romeo, G, Carlino, G, Cartacci, AM, Casaus, J, Castellini, G, Cavallari, F, Cavallo, N, Cecchi, C, Cerrada, M, Cesaroni, F, Chamizo, M, Chang, YH, Chaturvedi, UK, Chemarin, M, Chen, A, Chen, G, Chen, GM, Chen, HF, Chen, HS, Chiefari, G, Cifarelli, L, Cindolo, F, Civinini, C, Clare, I, Clare, R, Coignet, G, Colijn, AP, Colino, N, Costantini, S, Cotorobai, F, Cozzoni, B, De la Cruz, B, Csilling, A, Cucciarelli, S, Dai, TS & Van Dalen, JA 2000, 'Measurement of the lifetime of the tau lepton', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 479, no. 1-3, pp. 67-78. https://doi.org/10.1016/S0370-2693(00)00347-6

TY - JOUR

T1 - Measurement of the lifetime of the tau lepton

AU - Acciarri, M.

AU - Achard, P.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Alcaraz, J.

AU - Alemanni, G.

AU - Allaby, J.

AU - Aloisio, A.

AU - Alviggi, M. G.

AU - Ambrosi, G.

AU - Anderhub, H.

AU - Andreev, V. P.

AU - Angelescu, T.

AU - Anselmo, F.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Bagnaia, P.

AU - Bajo, A.

AU - Baksay, L.

AU - Balandras, A.

AU - Banerjee, S.

AU - Banerjee, Sw

AU - Barczyk, A.

AU - Barillère, R.

AU - Barone, L.

AU - Bartalini, P.

AU - Basile, M.

AU - Battiston, R.

AU - Bay, A.

AU - Becattini, F.

AU - Becker, U.

AU - Behner, F.

AU - Bellucci, L.

AU - Berbeco, R.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Bhattacharya, S.

AU - Biasini, M.

AU - Biland, A.

AU - Blaising, J. J.

AU - Blyth, S. C.

AU - Bobbink, G. J.

AU - Böhm, A.

AU - Boldizsar, L.

AU - Borgia, B.

AU - Bourilkov, D.

AU - Bourquin, M.

AU - Braccini, S.

AU - Branson, J. G.

AU - Brigljevic, V.

AU - Brochu, F.

AU - Buffini, A.

AU - Buijs, A.

AU - Burger, J. D.

AU - Burger, W. J.

AU - Cai, X. D.

AU - Campanelli, M.

AU - Capell, M.

AU - Cara Romeo, G.

AU - Carlino, G.

AU - Cartacci, A. M.

AU - Casaus, J.

AU - Castellini, G.

AU - Cavallari, F.

AU - Cavallo, N.

AU - Cecchi, C.

AU - Cerrada, M.

AU - Cesaroni, F.

AU - Chamizo, M.

AU - Chang, Y. H.

AU - Chaturvedi, U. K.

AU - Chemarin, M.

AU - Chen, A.

AU - Chen, G.

AU - Chen, G. M.

AU - Chen, H. F.

AU - Chen, H. S.

AU - Chiefari, G.

AU - Cifarelli, L.

AU - Cindolo, F.

AU - Civinini, C.

AU - Clare, I.

AU - Clare, R.

AU - Coignet, G.

AU - Colijn, A. P.

AU - Colino, N.

AU - Costantini, S.

AU - Cotorobai, F.

AU - Cozzoni, B.

AU - De la Cruz, B.

AU - Csilling, A.

AU - Cucciarelli, S.

AU - Dai, T. S.

AU - Van Dalen, J. A.

PY - 2000/4/20

Y1 - 2000/4/20

N2 - The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in τ(τ) = 293.2 ± 2.0 (stat) ± 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, α(s) is found to be α(s)(m(τ)/2) = 0.319 ± 0.015 (exp) ± 0.014 (theory). (C) 2000 Elsevier Science B.V.

AB - The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in τ(τ) = 293.2 ± 2.0 (stat) ± 1.5 (syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, α(s) is found to be α(s)(m(τ)/2) = 0.319 ± 0.015 (exp) ± 0.014 (theory). (C) 2000 Elsevier Science B.V.

UR - http://www.scopus.com/inward/record.url?scp=0002035364&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(00)00347-6

DO - 10.1016/S0370-2693(00)00347-6

M3 - 期刊論文

AN - SCOPUS:0002035364

SN - 0370-2693

VL - 479

SP - 67

EP - 78

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 - 1-3

ER -

Measurement of the lifetime of the tau lepton

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