CHARGE ASYMMETRY IN ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit q}}{{\overline{\mathit q}}}$

INSPIRE   PDGID:
S044Z0Q
Summed over five lighter flavors.

Experimental and Standard Model values are somewhat event-selection dependent. Standard Model expectations contain some assumptions on ${{\mathit B}^{0}}-{{\overline{\mathit B}}^{0}}$ mixing and on other electroweak parameters.
ASYMMETRY ${\mathrm {(\%)}}$ STD. MODEL $\sqrt {\mathit s }$ ${\mathrm {(GeV)}}$ DOCUMENT ID TECN
• • We do not use the following data for averages, fits, limits, etc. • •
$ -0.76 \pm0.12 \pm0.15 $ $91.2$ 1
ABREU
1992I
 DLPH
$ 4.0 \pm0.4 \pm0.63 $ $4.0$ $91.3$ 2
ACTON
1992L
 OPAL
$ 9.1 \pm1.4 \pm1.6 $ $9.0$ $57.9$
ADACHI
1991
TOPZ
$ -0.84 \pm0.15 \pm0.04 $ $91$
DECAMP
1991B
 ALEP
$ 8.3 \pm2.9 \pm1.9 $ $8.7$ $56.6$
STUART
1990
AMY
$ 11.4 \pm2.2 \pm2.1 $ $8.7$ $57.6$
ABE
1989L
 VNS
$ 6.0 \pm1.3 $ $5.0$ $34.8$
GREENSHAW
1989
JADE
$ 8.2 \pm2.9 $ $8.5$ $43.6$
GREENSHAW
1989
JADE
1  ABREU 1992I has $0.14$ systematic error due to uncertainty of quark fragmentation.
2  ACTON 1992L use the weight function method on 259k selected ${{\mathit Z}}$ $\rightarrow$ hadrons events. The systematic error includes a contribution of $0.2$ due to ${{\mathit B}^{0}}-{{\overline{\mathit B}}^{0}}$ mixing effect, $0.4$ due to Monte Carlo (MC) fragmentation uncertainties and $0.3$ due to MC statistics. ACTON 1992L derive a value of sin$^2\theta {}^{{\mathrm {eff}}}_{{{\mathit W}}}$ to be $0.2321$ $\pm0.0017$ $\pm0.0028$.
References:
ABREU 1992I
PL B277 371 A Measurement of sin$^2\theta _{W}$ from the Charge Asymmetry of Hadronic Events at the ${{\mathit Z}^{0}}$ Peak
ACTON 1992L
PL B294 436 A Measurement of the Forward-Backward Charge Asymmetry in Hadronic Decays of the${{\mathit Z}^{0}}$
ADACHI 1991
PL B255 613 Charge Asymmetry of Hadronic Events in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation at $\sqrt {s }$ = 57.9 GeV
DECAMP 1991B
PL B259 377 Measurement of Charge Asymmetry in Hadronic ${{\mathit Z}^{0}}$ Decays
STUART 1990
PRL 64 983 Forward Backward Charge Asymmetry in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ jets
ABE 1989L
PL B232 425 Charge Asymmetry of Hadron Jets and Limits on the Compositeness Scales in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ Reaction at $\sqrt {s }$ = 57.6 GeV
GREENSHAW 1989
ZPHY C42 1 A Measurement of the Charge Asymmetry of Hadronic Events in Electron Positron Annihilation