# Measurement of the W $\rightarrow \tau\nu$ production cross section in $p\overline{p}$ collisions at $\sqrt{s}$ = 1.8 TeV

Abstract : We report on a measurement of sigma(p-pbar to W+X) times B(W to tau+nu) in p-pbar collisions at sqrt(s) = 1.8 TeV at the Fermilab Tevatron. The measurement is based on an integrated luminosity of 18 pb^-1 of data collected with the D0 detector during 1994-1995. We find that sigma(p-pbar to W+X) times B(W to tau+nu) = 2.22 +- 0.09 (stat) +- 0.10 (syst) +- 0.10 (lum) nb. Lepton universality predicts that the ratio of the tau and electron electroweak charged current couplings to the W boson, g_tau^W / g_e^W, be unity. We find g_tau^W / g_e^W = 0.980 +- 0.031, in agreement with lepton universality.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00004990
Contributor : LPSC bibliotheque Connect in order to contact the contributor
Submitted on : Monday, June 26, 2000 - 3:51:33 PM
Last modification on : Tuesday, February 1, 2022 - 8:43:17 AM
Long-term archiving on: : Friday, May 29, 2015 - 4:46:57 PM

### Citation

B. Abbott, M. Abolins, V. Abramov, B.S. Acharya, D.L. Adams, et al.. Measurement of the W $\rightarrow \tau\nu$ production cross section in $p\overline{p}$ collisions at $\sqrt{s}$ = 1.8 TeV. Physical Review Letters, American Physical Society, 2000, 84, pp.5710-5715. ⟨10.1103/PhysRevLett.84.5710⟩. ⟨in2p3-00004990⟩

Record views