Measurements ofZ-boson resonance parameters in $e^{+}$ $e^{-}$ annihilation

Authors:

GAG. S. Abrams
G. S. Abrams
CAC. E. Adolphsen
C. E. Adolphsen
DAD. Averill
D. Averill
JBJ. Ballam
J. Ballam
BBB. C. Barish
B. C. Barish
TBT. Barklow
T. Barklow
BBB. A. Barnett
B. A. Barnett
JBJ. Bartelt
J. Bartelt
SBS. Bethke
S. Bethke
DBD. Blockus
D. Blockus
GBG. Bonvicini
G. Bonvicini
ABA. Boyarski
A. Boyarski

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13 November 1989

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

Vol. 63 (20) , 2173-2176
DOI:10.1103/physrevlett.63.2173
PMID:10040819

Abstract

We have measured the mass of the Z boson to be 91.14±0.12 GeV/

c^{2}

, and its width to be

{2.42}_{- 0.35}^{+ 0.45}

GeV. If we constrain the visible width to its standard-model value, we find the partial width to invisible decay modes to be 0.46±0.10 GeV, corresponding to 2.8±0.6 neutrino species, with a 95%-confidence-level upper limit of 3.9.

Keywords

This publication has 8 references indexed in Scilit:

Initial measurements ofZ-boson resonance parameters in $e^{+}$ $e^{-}$ annihilation
Physical Review Letters, 1989
Measurement of the mass and width of the $Z^{0}$ boson at the Fermilab Tevatron
Physical Review Letters, 1989
Electroweak cross sections and asymmetries at the Z0
Nuclear Physics B, 1989
Search for the anomalous production of single photons in $e^{+}$ $e^{-}$ annihilation at√s =29GeV
Physical Review D, 1989
Radiative corrections to Bhabha scattering at high energies
Nuclear Physics B, 1988
Radiative corrections to the $Z^{0}$ resonance
Physical Review D, 1988
Analytic forms for the $e^{+}$ $e^{-}$ annihilation cross section near theZincluding initial-state radiation
Physical Review D, 1987
Measurement of the standard model parameters from a study of W and Z bosons
Physics Letters B, 1987

Measurements ofZ-boson resonance parameters ine+e−annihilation

Abstract

Keywords

Measurements ofZ-boson resonance parameters in $e^{+}$ $e^{-}$ annihilation