Measurement of the Ratio $\frac{σ B (W \to e ν)}{σ B (Z^{0} \to e^{+} e^{-})}$ in $\bar{p} p$ Collisions at $\sqrt{s} = 1.8$ TeV

Publisher Website

11 July 1994

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 73 (2) , 220-224
https://doi.org/10.1103/physrevlett.73.220

Abstract

We present a measurement of the ratio

\frac{σ B (W \to e ν)}{σ B (Z^{0} \to e^{+} e^{-})}

in

\bar{p} p

collisions at

\sqrt{s} = 1.8

TeV The data represent an integrated luminosity of 21.7

{pb}^{- 1}

from the 1992-1993 run of the Collider Detector at Fermilab. We find

\frac{σ B (W \to e ν)}{σ B (Z^{0} \to e^{+} e^{-})} = 10.90 \pm 0.32 (stat) \pm 0.29 (syst)

. From this value, we extract a value for the

W

width,

Γ (W) = 2.064 \pm 0.061 (stat) \pm 0.059 (syst)

GeV, and the branching ratio,

\frac{Γ (W \to e ν)}{Γ (W) = 0.1094 \pm 0.0033 (stat) \pm 0.0031 (syst)}

, and we set a decay-mode-independent limit on the top quark mass

m_{top} > 62

GeV/

c^{2}

at the 95% C.L.

Keywords

This publication has 18 references indexed in Scilit:

Measurement of the production and muonic decay rate ofWandZbosons inpp¯collisions at √s=1.8 TeV
Physical Review Letters, 1992
A measurement of the W and Z production cross sections and a determination of Γw at the CERN [ovbar|p]p collider
Physics Letters B, 1992
Measurement of $σ B (W \to e ν)$ and $σ B (Z^{0} \to e^{+} e^{-})$ in $\bar{p} p$ collisions at $\sqrt{s} = 1800$ GeV
Physical Review D, 1991
Measurement of the ratio R≡σWBr(W→μν)/σzBr(Z→μμ) and ΓWtot at the CERN proton-antiproton collider
Physics Letters B, 1991
Measurement of the ratio σ(W→eν)/σ(Z→ee) inp¯pcollisions at√s =1.8TeV
Physical Review Letters, 1990
Weak-boson production at Fermilab Tevatron energies
Physical Review D, 1989
The CDF detector: an overview
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1988
Number of Neutrinos in the Standard Model and its Extensions to Supersymmetry
Physical Review Letters, 1985
Counting neutrino species in high-energy proton-antiproton collisions
Physical Review D, 1984
Limits to the Number of Neutrinos: A Comment on the $Z^{0}$ Discovery
Physical Review Letters, 1983