pdgLive

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

Summed over particle and antiparticle, when appropriate.

$\langle{}\mathit N_{{{\mathit \pi}^{0}}}\rangle{}$

VALUE

DOCUMENT ID

TECN

COMMENT

$\bf{ 9.76 \pm0.26}$

OUR AVERAGE

$9.55$ $\pm0.06$ $\pm0.75$

OPAL

${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV

$9.63$ $\pm0.13$ $\pm0.63$

ALEP

${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV

$9.90$ $\pm0.02$ $\pm0.33$

L3

${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV

$9.2$ $\pm0.2$ $\pm1.0$

DLPH

${\it{}E}^{\it{}ee}_{\rm{}cm}$= $91.2$ GeV

References:

EPJ C5 411

Photon and Light Meson Production in Hadronic ${{\mathit Z}^{0}}$ Decays

ZPHY C74 451

Inclusive Production of Neutral Pions in Hadronic ${{\mathit Z}}$ Decays

PL B371 126

Measurement of ${{\mathit \eta}}$ Production in Two and Three Jet Events from Hadronic ${{\mathit Z}}$ Decays at LEP

ZPHY C69 561

Measurement of Inclusive ${{\mathit \pi}^{0}}$ Production in Hadronic ${{\mathit Z}^{0}}$ Decays

Except where otherwise noted, content of the 2023 Review of Particle Physics is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT (Japan), INFN (Italy), JPS and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2023. See LBNL disclaimers.