Measurement of the Michel parameters and the average tau-neutrino helicity from tau decays at LEP

M. Acciarri; O. Adriani; M. Aguilar-Benitez; S. Ahlen; 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; L. Baksay; R.C. Ball; S. Banerjee; Sw. Banerjee; K. Banicz; A. Barczyk; R. Barillère; L. Barone; P. Bartalini; A. Baschirotto; M. Basile; R. Battiston; A. Bay; F. Becattini; U. Becker; F. Behner; J. Berdugo; P. Berges; B. Bertucci; B.L. Betev; S. Bhattacharya; M. Biasini; A. Biland; G.M. Bilei; J.J. Blaising; S.C. Blyth; G.J. Bobbink; R. Bock; A. Böhm; L. Boldizsar; B. Borgia; D. Bourilkov; M. Bourquin; D. Boutigny; S. Braccini; J.G. Branson; V. Brigljevic; I.C. Brock; A. Buffini; A. Buijs; J.D. Burger; W.J. Burger; J. Busenitz; 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; M. Chen; G. Chiefari; C.Y. Chien; L. Cifarelli; F. Cindolo; C. Civinini; I. Clare; R. Clare; G. Coignet; A.P. Colijn; N. Colino; S. Costantini; F. Cotorobai; B. de la Cruz; A. Csilling; T.S. Dai; R. D'Alessandro; R. de Asmundis; A. Degré; K. Deiters; P. Denes; F. DeNotaristefani; M. Diemoz; D.van Dierendonck; F. Di Lodovico; C. Dionisi; M. Dittmar; A. Dominguez; A. Doria; M.T. Dova; E. Drago; D. Duchesneau; P. Duinker; I. Duran; S. Easo; H. El Mamouni; A. Engler; F.J. Eppling; F.C. Erné; P. Extermann; M. Fabre; R. Faccini; M.A. Falagan; S. Falciano; A. Favara; J. Fay; O. Fedin; M. Felcini; T. Ferguson; F. Ferroni; H. Fesefeldt; E. Fiandrini; J.H. Field; F. Filthaut; P.H. Fisher; I. Fisk; G. Forconi; L. Fredj; K. Freudenreich; C. Furetta; Yu. Galaktionov; S.N. Ganguli; P. Garcia-Abia; M. Gataullin; S.S. Gau; S. Gentile; J. Gerald; N. Gheordanescu; S. Giagu; S. Goldfarb; J. Goldstein; Z.F. Gong; A. Gougas; G. Gratta; M.W. Gruenewald; R. van Gulik; V.K. Gupta; A. Gurtu; L.J. Gutay; D. Haas; B. Hartmann; A. Hasan; D. Hatzifotiadou; T. Hebbeker; A. Hervé; P. Hidas; J. Hirschfelder; W.C. van Hoek; H. Hofer; H. Hoorani; S.R. Hou; G. Hu; I. Iashvili; B.N. Jin; L.W. Jones; P. de Jong; I. Josa-Mutuberria; A. Kasser; R.A. Khan; D. Kamrad; J.S. Kapustinsky; Y. Karyotakis; M. Kaur; M.N. Kienzle-Focacci; D. Kim; D.H. Kim; J.K. Kim; S.C. Kim; W.W. Kinnison; A. Kirkby; D. Kirkby; J. Kirkby; D. Kiss; W. Kittel; A. Klimentov; A.C. König; A. Kopp; I. Korolko; V. Koutsenko; R.W. Kraemer; W. Krenz; A. Kunin; P. Lacentre; P. Ladron de Guevara; G. Landi; C. Lapoint; K. Lassila-Perini; P. Laurikainen; A. Lavorato; M. Lebeau; A. Lebedev; P. Lebrun; P. Lecomte; P. Lecoq; P. Le Coultre; H.J. Lee; C. Leggett; J.M. Le Goff; R. Leiste; E. Leonardi; P. Levtchenko; C. Li; C.H. Lin; W.T. Lin; F.L. Linde; L. Lista; Z.A. Liu; W. Lohmann; E. Longo; W. Lu; Y.S. Lu; K. Lübelsmeyer; C. Luci; D. Luckey; L. Luminari; W. Lustermann; W.G. Ma; M. Maity; G. Majumder; L. Malgeri; A. Malinin; C. Maña; D. Mangeol; P. Marchesini; G. Marian; A. Marin; J.P. Martin; F. Marzano; G.G.G. Massaro; K. Mazumdar; S. Mele; L. Merola; M. Meschini; W.J. Metzger; M.von der Mey; Y. Mi; D. Migani; A. Mihul; A.J.W. van Mil; H. Milcent; G. Mirabelli; J. Mnich; P. Molnar; B. Monteleoni; R. Moore; T. Moulik; R. Mount; G.S. Muanza; F. Muheim; A.J.M. Muijs; S. Nahn; M. Napolitano; F. Nessi-Tedaldi; H. Newman; T. Niessen; A. Nippe; A. Nisati; H. Nowak; Y.D. Oh; G. Organtini; R. Ostonen; C. Palomares; D. Pandoulas; S. Paoletti; P. Paolucci; H.K. Park; I.H. Park; G. Pascale; G. Passaleva; S. Patricelli; T. Paul; M. Pauluzzi; C. Paus; F. Pauss; D. Peach; M. Pedace; Y.J. Pei; S. Pensotti; D. Perret-Gallix; B. Petersen; S. Petrak; A. Pevsner; D. Piccolo; M. Pieri; P.A. Piroué; E. Pistolesi; V. Plyaskin; M. Pohl; V. Pojidaev; H. Postema; J. Pothier; N. Produit; D. Prokofiev; J. Quartieri; G. Rahal-Callot; N. Raja; P.G. Rancoita; M. Rattaggi; G. Raven; P. Razis; D. Ren; M. Rescigno; S. Reucroft; T. van Rhee; S. Riemann; K. Riles; O. Rind; A. Robohm; J. Rodin; B.P. Roe; L. Romero; S. Rosier-Lees; Ph. Rosselet; S. Roth; J.A. Rubio; D. Ruschmeier; H. Rykaczewski; S. Sakar; J. Salicio; E. Sanchez; M.P. Sanders; M.E. Sarakinos; G. Sauvage; C. Schäfer; V. Schegelsky; S. Schmidt-Kaerst; D. Schmitz; M. Schneegans; N. Scholz; H. Schopper; D.J. Schotanus; J. Schwenke; G. Schwering; C. Sciacca; D. Sciarrino; L. Servoli; S. Shevchenko; N. Shivarov; V. Shoutko; J. Shukla; E. Shumilov; A. Shvorob; T. Siedenburg; D. Son; V. Soulimov; B. Smith; P. Spillantini; M. Steuer; D.P. Stickland; H. Stone; B. Stoyanov; A. Straessner; K. Sudhakar; G. Sultanov; L.Z. Sun; G.F. Susinno; H. Suter; J.D. Swain; X.W. Tang; L. Tauscher; L. Taylor; C. Timmermans; Samuel C.C. Ting; S.M. Ting; S.C. Tonwar; J. Tóth; C. Tully; K.L. Tung; Y. Uchida; J. Ulbricht; E. Valente; G. Vesztergombi; I. Vetlitsky; G. Viertel; S. Villa; M. Vivargent; S. Vlachos; H. Vogel; H. Vogt; I. Vorobiev; A.A. Vorobyov; A. Vorvolakos; M. Wadhwa; W. Wallraff; J.C. Wang; X.L. Wang; Z.M. Wang; A. Weber; S.X. Wu; S. Wynhoff; J. Xu; Z.Z. Xu; B.Z. Yang; C.G. Yang; H.J. Yang; M. Yang; J.B. Ye; S.C. Yeh; J.M. You; An. Zalite; Yu. Zalite; P. Zemp; Y. Zeng; Z.P. Zhang; B. Zhou; Y. Zhou; G.Y. Zhu; R.Y. Zhu; A. Zichichi; F. Ziegler; G. Zilizi

doi:10.1016/s0370-2693(98)01082-x

Measurement of the Michel parameters and the average tau-neutrino helicity from tau decays at LEP

Physics Letters B ◽

10.1016/s0370-2693(98)01082-x ◽

1998 ◽

Vol 438 (3-4) ◽

pp. 405-416 ◽

Cited By ~ 1

Author(s):

M. Acciarri ◽

O. Adriani ◽

M. Aguilar-Benitez ◽

S. Ahlen ◽

J. Alcaraz ◽

...

Keyword(s):

Tau Decays ◽

Tau Neutrino ◽

Michel Parameters

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On spin asymmetry in muon and tau decays

International Journal of Modern Physics A ◽

10.1142/s0217751x18501919 ◽

2018 ◽

Vol 33 (32) ◽

pp. 1850191

Author(s):

A. B. Arbuzov ◽

T. V. Kopylova ◽

I. K. Sklyarov

Keyword(s):

Charged Lepton ◽

Spin Asymmetry ◽

Second Order ◽

Tau Leptons ◽

Mass Ratio ◽

Fermi Model ◽

Tau Decays ◽

Standard Formula ◽

Leading Logarithm ◽

Michel Parameters

The angular asymmetry in decays of polarized muons and tau leptons is discussed. Both the standard [Formula: see text] Fermi model and the general parametrization via Michel parameters are considered. Numerical importance of contributions suppressed by charged lepton mass ratio is underlined. Contribution of the second order QED correction is estimated in the leading logarithm approximation.

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Measurement of the Michel parameters in leptonic tau decays using the OPAL detector at LEP

Nuclear Physics B - Proceedings Supplements ◽

10.1016/s0920-5632(99)00450-8 ◽

1999 ◽

Vol 76 (1-3) ◽

pp. 147-157

Author(s):

R. Bartoldus

Keyword(s):

Opal Detector ◽

Tau Decays ◽

Michel Parameters

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An upper limit on the $\tau$ neutrino mass from three- and five-prong tau decays

The European Physical Journal C ◽

10.1007/s100529800850 ◽

1998 ◽

Vol 2 (3) ◽

pp. 395-406 ◽

Cited By ~ 11

Author(s):

R. Barate et al. ◽

Keyword(s):

Neutrino Mass ◽

Tau Decays ◽

Tau Neutrino ◽

Upper Limit

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An upper limit on the tau neutrino mass from leptonic tau decays

Zeitschrift für Physik C Particles and Fields ◽

10.1007/s002880050116 ◽

1996 ◽

Vol 70 (3) ◽

pp. 383-385

Author(s):

R.J. Sobie ◽

R.K. Keeler ◽

I. Lawson

Keyword(s):

Neutrino Mass ◽

Tau Decays ◽

Tau Neutrino ◽

Upper Limit

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Study of the Lorentz Structure of the Charged Weak Interaction in Tau Decays at Belle

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194518600601 ◽

2018 ◽

Vol 46 ◽

pp. 1860060

Author(s):

Junya Sasaki

Keyword(s):

Weak Interaction ◽

Tau Lepton ◽

Tau Decays ◽

Preliminary Results ◽

Lorentz Structure ◽

Leptonic Decays ◽

Decay Widths ◽

Belle Experiment ◽

Michel Parameters

To test the Lorentz structure of the charged weak interaction, we study leptonic decays of tau lepton in the Belle experiment. We perform this test through the measurement of Michel parameters which appear in the differential decay widths of leptonic tau decays. In this paper, we discuss the preliminary results of the measurement of Michel parameters at Belle.

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