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

Summed over particle and antiparticle, when appropriate.

$\langle{}\mathit N_{{{\mathit \pi}^{\pm}}}\rangle{}$

INSPIRE   PDGID:
S043PIC
VALUE DOCUMENT ID TECN  COMMENT
$15.70$ $\pm0.35$ 1
ABREU,P
2000F
 DLPH ${\it{}E}^{\it{}ee}_{\rm{}cm}$= 189 GeV
1  ABREU,P 2000F measure $\langle{}\mathit N_{{{\mathit \pi}^{\pm}}}\rangle{}$ = $31.65$ $\pm0.48$ $\pm0.76$ and $15.51$ $\pm0.38$ $\pm0.40$ in the fully hadronic and semileptonic final states respectively. The value quoted is a weighted average without assuming any correlations.
References:
ABREU,P 2000F
EPJ C18 203 Charged and Identified Particles in the Hadronic Decay of ${{\mathit W}}$ Bosons and in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ from 130 to 200 GeV
Also
EPJ C25 493 (errat.) Erratum: ABREU,P 2000F Charged and Identified Particles in the Hadronic Decay of ${{\mathit W}}$ Bosons and in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ from 130 to 200 Gev