Measurement of the ratio $\sigma B (W \to e \nu) / \sigma B (Z^0 \to e^+ e^-)$ in $\bar{p}p$ collisions at $\sqrt{s} = 1.8$ TeV - INSPIRE

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Measurement of the ratio $\sigma B (W \to e \nu) / \sigma B (Z^0 \to e^+ e^-)$ in $\bar{p}p$ collisions at $\sqrt{s} = 1.8$ TeV

CDF

Collaboration

Feb, 1994

13 pages

Published in:

Phys.Rev.Lett. 73 (1994) 220-224

DOI:

10.1103/PhysRevLett.73.220

Report number:

FERMILAB-PUB-94-051-E,
CDF-PUB-ELECTROWEAK-PUBLIC-2182

Experiments:

FNAL-E-0741

View in:

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Abstract: (APS)

We present a measurement of the ratio σB(W→eν)σB(Z0→e+e−) in p¯p collisions at 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 σB(W→eν)σB(Z0→e+e−)=10.90±0.32(stat)±0.29(syst). From this value, we extract a value for the W width, Γ(W)=2.064±0.061(stat)±0.059(syst) GeV, and the branching ratio, Γ(W→eν)Γ(W)=0.1094±0.0033(stat)±0.0031(syst), and we set a decay-mode-independent limit on the top quark mass mtop>62 GeV/c2 at the 95% C.L.

anti-p p: colliding beams
colliding beams: anti-p p
anti-p p: inclusive reaction
W: hadroproduction
hadroproduction: W
Z0: hadroproduction
hadroproduction: Z0
intermediate boson: leptonic decay
leptonic decay: intermediate boson
W: width

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