pdgLive

2004

DLPH

$ 5.68 \pm0.54 \pm0.39 $

$6.3$

$91.25$

2003

OPAL

$ 6.45 \pm0.57 \pm0.37 $

$6.10$

$91.21$

ALEP

$ 6.59 \pm0.94 \pm0.35 $

$6.2$

$91.235$

⁴

1999

DLPH

$ 6.3 \pm0.9 \pm0.3 $

$6.1$

$91.22$

⁵

1998

ALEP

$ 6.3 \pm1.2 \pm0.6 $

$6.1$

$91.22$

⁶

1997

OPAL

$ 8.3 \pm3.8 \pm2.7 $

$6.2$

$91.24$

⁷

ADRIANI

1992

• • We do not use the following data for averages, fits, limits, etc. • •

$ 3.1 \pm3.5 \pm0.5 $

$-3.5$

$89.43$

2004

DLPH

$ 11.0 \pm2.8 \pm0.7 $

$12.3$

$92.99$

2004

DLPH

$ -6.8 \pm2.5 \pm0.9 $

$-3.0$

$89.51$

2003

OPAL

$ 14.6 \pm2.0 \pm0.8 $

$12.2$

$92.95$

2003

OPAL

$ -12.4 \pm15.9 \pm2.0 $

$-9.6$

$88.38$

ALEP

$ -2.3 \pm2.6 \pm0.2 $

$-3.8$

$89.38$

ALEP

$ -0.3 \pm8.3 \pm0.6 $

$0.9$

$90.21$

ALEP

$ 10.6 \pm7.7 \pm0.7 $

$9.6$

$92.05$

ALEP

$ 11.9 \pm2.1 \pm0.6 $

$12.2$

$92.94$

ALEP

$ 12.1 \pm11.0 \pm1.0 $

$14.2$

$93.90$

ALEP

$ -4.96 \pm3.68 \pm0.53 $

$-3.5$

$89.434$

⁴

1999

DLPH

$ 11.80 \pm3.18 \pm0.62 $

$12.3$

$92.990$

⁴

1999

DLPH

$ -1.0 \pm4.3 \pm1.0 $

$-3.9$

$89.37$

⁵

1998

ALEP

$ 11.0 \pm3.3 \pm0.8 $

$12.3$

$92.96$

⁵

1998

ALEP

$ 3.9 \pm5.1 \pm0.9 $

$-3.4$

$89.45$

⁶

1997

OPAL

$ 15.8 \pm4.1 \pm1.1 $

$12.4$

$93.00$

⁶

1997

OPAL

$ -12.9 \pm7.8 \pm5.5 $

$-13.6$

$35$

BEHREND

CELL

$ 7.7 \pm13.4 \pm5.0 $

$-22.1$

$43$

BEHREND

CELL

$ -12.8 \pm4.4 \pm4.1 $

$-13.6$

$35$

ELSEN

JADE

$ -10.9 \pm12.9 \pm4.6 $

$-23.2$

$44$

ELSEN

JADE

$ -14.9 \pm6.7 $

$-13.3$

$35$

OULD-SAADA

1989

JADE

ABDALLAH 2004F tag ${{\mathit b}}-$ and ${{\mathit c}}-$quarks using semileptonic decays combined with charge flow information from the hemisphere opposite to the lepton. Enriched samples of ${{\mathit c}}{{\overline{\mathit c}}}$ and ${{\mathit b}}{{\overline{\mathit b}}}$ events are obtained using lifetime information.

²	ABBIENDI 2003P tag heavy flavors using events with one or two identified leptons. This allows the simultaneous fitting of the ${{\mathit b}}$ and ${{\mathit c}}~$quark forward-backward asymmetries as well as the average ${{\mathit B}^{0}}-{{\overline{\mathit B}}^{0}}$ mixing.

³	HEISTER 2002H measure simultaneously ${{\mathit b}}$ and ${{\mathit c}}$ quark forward-backward asymmetries using their semileptonic decays to tag the quark charge. The flavor separation is obtained with a discriminating multivariate analysis.

⁴

ABREU 1999Y tag ${{\mathit Z}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ and ${{\mathit Z}}$ $\rightarrow$ ${{\mathit c}}{{\overline{\mathit c}}}$ events by an exclusive reconstruction of several ${{\mathit D}}~$ meson decay modes ( ${{\mathit D}^{*+}}$ , ${{\mathit D}^{0}}$, and ${{\mathit D}^{+}}$ with their charge-conjugate states).

⁵	BARATE 1998O tag ${{\mathit Z}}$ $\rightarrow$ ${{\mathit c}}{{\overline{\mathit c}}}$ events requiring the presence of high-momentum reconstructed ${{\mathit D}^{*+}}$, ${{\mathit D}^{+}}$, or ${{\mathit D}^{0}}$ mesons.

⁶	ALEXANDER 1997C identify the ${\mathit {\mathit b}}$ and ${\mathit {\mathit c}}$ events using a ${{\mathit D}}/{{\mathit D}^{*}}$ tag.

⁷	ADRIANI 1992D use both electron and muon semileptonic decays.

References:

2004F

EPJ C34 109

Measurement of the Forward Backward Asymmetries of ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ and ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit c}}{{\overline{\mathit c}}}$ using Prompt Leptons

2003P

PL B577 18

Measurement of Heavy Quark Forward Backward Asymmetries and Average ${{\mathit B}}$ Mixing using Leptons in Hadronic ${{\mathit Z}}$ Decays

2002H

EPJ C24 177

Measurement of the Forward-Backward Asymmetry in ${{\mathit Z}}$ $\rightarrow$ ${\mathit {\mathit b}}$ ${\mathit {\overline{\mathit b}}}$ and ${{\mathit Z}}$ $\rightarrow$ ${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit c}}}$

1999Y

EPJ C10 219

Measurement of the Forward Backward Asymmetry of ${\mathit {\mathit c}}$ and ${\mathit {\mathit b}}$ Quarks at the ${{\mathit Z}}$ Pole using Reconstructed ${{\mathit D}}$ Mesons

1998O

PL B434 415

The Forward-Backward Asymmetry for Charm Quarks at the ${{\mathit Z}}$

1997C

ZPHY C73 379

A Measurement of the Charm and Bottom Forward Backward Asymmetries using ${{\mathit D}}$ Mesons at LEP

ADRIANI

1992D

PL B292 454

Measurement of the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${\mathit {\mathit b}}$ ${\mathit {\overline{\mathit b}}}$ and ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit c}}}$ Forward Backward Asymmetries at the ${{\mathit Z}^{0}}$ Resonance

BEHREND

1990D

ZPHY C47 333

Heavy Quark Charge Asymmetries with the CELLO Detector

ELSEN