The ratio of branching fractions of the W decaying to τ and e leptons is measured using {Mathematical expression} collisions at {Mathematical expression} GeV. The ratio of the electroweak charged current couplings to the W is then determined to be g τ W/g e W=0.997±0.0 56 (stat.)±0.042 (syst.). The decay mode Z→τ +→τ + is observed and also found to be consistent with e-τ universality.

A measurement of electron-tau universality from decays of intermediate vector bosons at the CERN $$\bar pp$$ collider / J. Alitti;G. Ambrosini;R. Ansari;D. Autiero;P. Bareyre;I. A. Bertram;G. Blaylock;P. Bonamy;M. Bonesini;K. Borer;M. Bourliaud;D. Buskulic;G. Carboni;D. Cavalli;V. Cavasinni;P. Cenci;J. C. Chollet;C. Conta;G. Costa;F. Costantini;L. Cozzi;A. Cravero;M. Curatolo;A. Dell'Acqua;T. DelPrete;R. S. DeWolf;L. DiLella;Y. Ducros;G. F. Egan;K. F. Einsweiler;B. Esposito;L. Fayard;A. Federspiel;R. Ferrari;M. Fraternali;D. Froidevaux;G. Fumagalli;J. M. Gaillard;F. Gianotti;O. Gildemeister;C. Gössling;V. G. Goggi;S. Grünendahl;K. Hara;S. Hellman;J. Hrivnac;H. Hufnagel;E. Hugentobler;K. Hultqvist;E. Iacopini;J. Incandela;K. Jakobs;P. Jenni;E. E. Kluge;N. Kurz;S. Lami;P. Lariccia;M. Lefebvre;L. Linssen;M. Livan;P. Lubrano;C. Magneville;L. Mandelli;L. Mapelli;M. Mazzanti;K. Meier;B. Merkel;J. P. Meyer;M. Moniez;R. Moning;M. Morganti;L. Müller;D. J. Munday;M. Nessi;F. Nessi-Tedaldi;C. Onions;T. Pal;M. A. Parker;G. Parrour;F. Pastore;E. Pennacchio;J. M. Pentney;M. Pepe;L. Perini;C. Petridou;P. Petroff;H. Plothow-Besch;G. Polesello;A. Poppleton;K. Pretzl;M. Primavera;M. Punturo;J. P. Repellin;A. Rimoldi;M. Sacchi;P. Scampoli;J. Schacher;V. Simak;S. L. Singh;V. Sondermann;S. Stapnes;A. V. Stirling;C. Talamonti;F. Tondini;S. N. Tovey;E. Tsesmelis;G. Unal;M. Valdata-Nappi;V. Vercesi;A. R. Weidberg;P. S. Wells;T. O. White;D. R. Wood;S. A. Wotton;H. Zaccone;A. Zylberstejn. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - STAMPA. - 52:(1991), pp. 209-218. [10.1007/BF01560438]

A measurement of electron-tau universality from decays of intermediate vector bosons at the CERN $$\bar pp$$ collider

IACOPINI, ENRICO;TALAMONTI, CINZIA;
1991

Abstract

The ratio of branching fractions of the W decaying to τ and e leptons is measured using {Mathematical expression} collisions at {Mathematical expression} GeV. The ratio of the electroweak charged current couplings to the W is then determined to be g τ W/g e W=0.997±0.0 56 (stat.)±0.042 (syst.). The decay mode Z→τ +→τ + is observed and also found to be consistent with e-τ universality.
1991
52
209
218
J. Alitti;G. Ambrosini;R. Ansari;D. Autiero;P. Bareyre;I. A. Bertram;G. Blaylock;P. Bonamy;M. Bonesini;K. Borer;M. Bourliaud;D. Buskulic;G. Carboni;D. Cavalli;V. Cavasinni;P. Cenci;J. C. Chollet;C. Conta;G. Costa;F. Costantini;L. Cozzi;A. Cravero;M. Curatolo;A. Dell'Acqua;T. DelPrete;R. S. DeWolf;L. DiLella;Y. Ducros;G. F. Egan;K. F. Einsweiler;B. Esposito;L. Fayard;A. Federspiel;R. Ferrari;M. Fraternali;D. Froidevaux;G. Fumagalli;J. M. Gaillard;F. Gianotti;O. Gildemeister;C. Gössling;V. G. Goggi;S. Grünendahl;K. Hara;S. Hellman;J. Hrivnac;H. Hufnagel;E. Hugentobler;K. Hultqvist;E. Iacopini;J. Incandela;K. Jakobs;P. Jenni;E. E. Kluge;N. Kurz;S. Lami;P. Lariccia;M. Lefebvre;L. Linssen;M. Livan;P. Lubrano;C. Magneville;L. Mandelli;L. Mapelli;M. Mazzanti;K. Meier;B. Merkel;J. P. Meyer;M. Moniez;R. Moning;M. Morganti;L. Müller;D. J. Munday;M. Nessi;F. Nessi-Tedaldi;C. Onions;T. Pal;M. A. Parker;G. Parrour;F. Pastore;E. Pennacchio;J. M. Pentney;M. Pepe;L. Perini;C. Petridou;P. Petroff;H. Plothow-Besch;G. Polesello;A. Poppleton;K. Pretzl;M. Primavera;M. Punturo;J. P. Repellin;A. Rimoldi;M. Sacchi;P. Scampoli;J. Schacher;V. Simak;S. L. Singh;V. Sondermann;S. Stapnes;A. V. Stirling;C. Talamonti;F. Tondini;S. N. Tovey;E. Tsesmelis;G. Unal;M. Valdata-Nappi;V. Vercesi;A. R. Weidberg;P. S. Wells;T. O. White;D. R. Wood;S. A. Wotton;H. Zaccone;A. Zylberstejn
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/794635
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