AVERAGE PARTICLE MULTIPLICITIES IN HADRONIC ${{\mathit Z}}$ DECAY

Summed over particle and antiparticle, when appropriate.

$\langle{}\mathit N_{\mathit charged}\rangle{}$

INSPIRE   PDGID:
S044CHG
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 20.76 \pm0.16}$ OUR AVERAGE  Error includes scale factor of 2.1.  See the ideogram below.
$20.46$ $\pm0.01$ $\pm0.11$
ACHARD
2003G
 L3 ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV
$21.21$ $\pm0.01$ $\pm0.20$
ABREU
1999
DLPH ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV
$21.05$ $\pm0.20$
AKERS
1995Z
 OPAL ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV
$20.91$ $\pm0.03$ $\pm0.22$
BUSKULIC
1995R
 ALEP ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV
$21.40$ $\pm0.43$
ACTON
1992B
 OPAL ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV
$20.71$ $\pm0.04$ $\pm0.77$
ABREU
1991H
 DLPH ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV
$20.7$ $\pm0.7$
ADEVA
1991I
 L3 ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV
$20.1$ $\pm1.0$ $\pm0.9$
ABRAMS
1990
MRK2 ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.1$ GeV

           $\langle{}\mathit N_{\mathit charged}\rangle{}$
References