# Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV

Abstract : From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be n_{ch} = 23.84 \pm 0.51 (stat) \pm 0.52 (syst). When compared to lower energy data, the value measured is consistent with the evolution predicted by QCD with corrections at next-to-leading order, for a value \alpha_s(130 {\mathrm{GeV}}) = 0.105 \pm 0.003 (stat) \pm 0.008 (syst).
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Journal articles

Cited literature [7 references]

http://hal.in2p3.fr/in2p3-00003500
Contributor : Sylvie Flores <>
Submitted on : Tuesday, February 9, 1999 - 3:39:22 PM
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### Identifiers

• HAL Id : in2p3-00003500, version 1

### Citation

P. Abreu, W. Adam, T. Adye, E. Agasi, I. Ajinenko, et al.. Charged particle multiplicity in $e^+e^-$ interactions at $\sqrt{s}$ = 130 GeV. Physics Letters B, Elsevier, 1996, 372, pp.172-180. ⟨in2p3-00003500⟩

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