Using the data collected by the L3 experiment at LEP from 1991 to 1995 at energies around the Z mass, a measurement of the weak anomalous magnetic dipole moment, a(tau)(w), and of the weak electric dipole moment, d(tau)(w), of the tau lepton is performed. These quantities are obtained from angular distributions in e(+)e(-)--> tau(+)tau(-)--> h(+)<(nu)over bar>(tau)h(-)nu(tau), where h is a pi or a rho. The results are: Re(a(tau)(w)) = (0.0 +/- 1.6 +/- 2.3) X 10(-3), Im(a(tau)(w)) = (-1.0 +/- 3.6 +/- 4.3) X 10(-3) and Re(d(tau)(w)) = (-0.44 +/- 0.88 +/- 1.33)X 10(-17)e.cm. This is the first direct measurement of a(tau)(w). (C) 1998 Elsevier Science B,V. All rights reserved.

Measurement of the weak dipole moments of the tau lepton / 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;S. Banerjee;K. Banicz;A. Barczyk;R. Barillere;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. Bohm;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. C. 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;S. V. Chekanov;M. Chemarin;A. 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Sauvage;C. Schafer;M. Schneegans;N. Scholz;V. Schegelsky;S. Schmidt-Kaerst;D. Schmitz;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;S. C. C.;S. M. Ting;S. C. Tonwar;J. Toth;C. Tully;H. Tuchscherer;K. L. Tung;Y. Uchida;J. Ulbricht;U. Uwer;E. Valente;G. Vesztergombi;I. Vetlitsky;G. Viertel;M. Vivargent;S. Vlachos;R. Volkert;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;X. Y. Yao;J. B. Ye;S. C. Yeh;J. M. You;A. Zalite;Y. Zalite;P. Zemp;Y. Zeng;Z. Zhang;Z. P. Zhang;B. Zhou;Y. Zhou;G. Y. Zhu;R. Y. Zhu;A. Zichichi;F. Ziegler. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 426:(1998), pp. 207-216. [10.1016/S0370-2693(98)00290-1]

Measurement of the weak dipole moments of the tau lepton

ADRIANI, OSCAR;BECATTINI, FRANCESCO;D'ALESSANDRO, RAFFAELLO;
1998

Abstract

Using the data collected by the L3 experiment at LEP from 1991 to 1995 at energies around the Z mass, a measurement of the weak anomalous magnetic dipole moment, a(tau)(w), and of the weak electric dipole moment, d(tau)(w), of the tau lepton is performed. These quantities are obtained from angular distributions in e(+)e(-)--> tau(+)tau(-)--> h(+)<(nu)over bar>(tau)h(-)nu(tau), where h is a pi or a rho. The results are: Re(a(tau)(w)) = (0.0 +/- 1.6 +/- 2.3) X 10(-3), Im(a(tau)(w)) = (-1.0 +/- 3.6 +/- 4.3) X 10(-3) and Re(d(tau)(w)) = (-0.44 +/- 0.88 +/- 1.33)X 10(-17)e.cm. This is the first direct measurement of a(tau)(w). (C) 1998 Elsevier Science B,V. All rights reserved.
1998
426
207
216
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. ...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/775513
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