We have observed over 10(2) events of the type W --> tau-v followed by tau --> hadrons, where the taus are identified by their decay into one or three charged particles. We measure the cross section times branching ratio for ppBAR --> W --> tau-v and compare it to the value for W --> ev to directly measure the ratio of weak coupling constants g(tau)/g(e). We find g(tau)/g(e) = 0.97 +/- 0.07, consistent with lepton universality.

F., A., D., A., G., A., M., A., P., A., A. R., B., et al. (1992). Measurement of the Ratio Beta(w-]tau-nu)/beta(w-]e-nu) In P(p)bar Collisions At Root-s=1.8 Tev. PHYSICAL REVIEW LETTERS, 68(23), 3398-3402 [10.1103/PhysRevLett.68.3398].

Measurement of the Ratio Beta(w-]tau-nu)/beta(w-]e-nu) In P(p)bar Collisions At Root-s=1.8 Tev

PAOLETTI, RICCARDO;TURINI, NICOLA;
1992-01-01

Abstract

We have observed over 10(2) events of the type W --> tau-v followed by tau --> hadrons, where the taus are identified by their decay into one or three charged particles. We measure the cross section times branching ratio for ppBAR --> W --> tau-v and compare it to the value for W --> ev to directly measure the ratio of weak coupling constants g(tau)/g(e). We find g(tau)/g(e) = 0.97 +/- 0.07, consistent with lepton universality.
1992
F., A., D., A., G., A., M., A., P., A., A. R., B., et al. (1992). Measurement of the Ratio Beta(w-]tau-nu)/beta(w-]e-nu) In P(p)bar Collisions At Root-s=1.8 Tev. PHYSICAL REVIEW LETTERS, 68(23), 3398-3402 [10.1103/PhysRevLett.68.3398].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/41193
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