# ${{\boldsymbol W}}/{{\boldsymbol Z}}$ MASS RATIO INSPIRE search

VALUE EVTS DOCUMENT ID TECN  COMMENT
$0.88153$ $\pm0.00017$ 1
 2016
• • • We do not use the following data for averages, fits, limits, etc. • • •
$0.8821$ $\pm0.0011$ $\pm0.0008$ 28323 2
 1998 N
D0 ${\it{}E}^{\it{}p\overline{\it{}p}}_{\rm{}cm}$= $1.8$ TeV
$0.88114$ $\pm0.00154$ $\pm0.00252$ 5982 3
 1998 P
D0 ${\it{}E}^{\it{}p\overline{\it{}p}}_{\rm{}cm}$= $1.8$ TeV
$0.8813$ $\pm0.0036$ $\pm0.0019$ 156 4
 1992 B
UA2 ${\it{}E}^{\it{}p\overline{\it{}p}}_{\rm{}cm}$= 630 GeV
1  PDG 2016 is the PDG average using the world average ${{\mathit m}_{{W}}}$ and ${{\mathit m}_{{Z}}}$ values as quoted in this edition of $\mathit Review~of~Particle~Physics$. The directly measured values of ${{\mathit m}_{{W}}}/{{\mathit m}_{{Z}}}$ are not used as their correlation with the Tevatron measured ${{\mathit m}_{{W}}}$ is unknown.
2  ABBOTT 1998N obtain this from a study of 28323 ${{\mathit W}}$ $\rightarrow$ ${{\mathit e}}{{\mathit \nu}_{{e}}}$ and 3294 ${{\mathit Z}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ decays. Of this latter sample, 2179 events are used to calibrate the electron energy scale.
3  ABBOTT 1998P obtain this from a study of 5982 ${{\mathit W}}$ $\rightarrow$ ${{\mathit e}}{{\mathit \nu}_{{e}}}$ events. The systematic error includes an uncertainty of $\pm0.00175$ due to the electron energy scale.
4  Scale error cancels in this ratio.
References:
 PDG 2016
CP C40 100001 Review of Particle Physics 2016
 ABBOTT 1998N
PR D58 092003 A Measurement of the ${{\mathit W}}$ Boson Mass
 ABBOTT 1998P
PR D58 012002 Determination of the Mass of the ${{\mathit W}}$ Boson using the ${D0}$ Detector at the Tevatron
 ALITTI 1992B
PL B276 354 An Improved Determination of the Ratio of ${{\mathit W}}$ and ${{\mathit Z}}$ Masses at the CERN ${{\overline{\mathit p}}}{{\mathit p}}$ Collider