2021 Impact factor 4.991
Particles and Fields
Eur. Phys. J. C 18, 203-228
DOI 10.1007/s100520000528

Charged and identified particles in the hadronic decay
of W bosons and in $e^+e^- \rightarrow {\rm q\bar{q}}$ from 130 to 200 GeV

The DELPHI Collaboration

P.Abreu22 - et al.

22 LIP, IST, FCUL - Av. Elias Garcia, 14-1o, PT-1000 Lisboa Codex, Portugal

Received: 29 February 2000 / Revised version: 9 October 2000 /
Published online 27 November 2000 - © Springer-Verlag 2000


Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at centre-of-mass energies from 183 to around 200 GeV. The possible effects of interconnection between the hadronic decays of two Ws are not observed. Measurements of the average multiplicity for charged and identified particles in q $\bar{\mathrm q}$ and WW events at centre-of-mass energies from 130 to 200 GeV and in W decays are presented. The results on the average multiplicity of identified particles and on the position $\xi^*$ of the maximum of the $\xi_p = -\mathrm{log} (\frac{2p}{\sqrt{s}})$ distribution are compared with predictions of JETSET and MLLA calculations.

Copyright Società Italiana di Fisica, Springer-Verlag 2000