# Charged Particle Production in High Q2 Deep-Inelastic Scattering at HERA

Abstract : The average charged track multiplicity and the normalised distribution of the scaled momentum, $\xp$, of charged final state hadrons are measured in deep-inelastic $\ep$ scattering at high $Q^2$ in the Breit frame of reference. The analysis covers the range of photon virtuality $100 < Q^2 < 20 000 \GeV^{2}$. Compared with previous results presented by HERA experiments this analysis has a significantly higher statistical precision and extends the phase space to higher $Q^{2}$ and to the full range of $\xp$. The results are compared with $e^+e^-$ annihilation data and with various calculations based on perturbative QCD using different models of the hadronisation process.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00171042
Contributor : Dominique Girod <>
Submitted on : Tuesday, September 11, 2007 - 1:00:29 PM
Last modification on : Wednesday, September 16, 2020 - 4:23:14 PM

### Citation

F.D. Aaron, A. Aktas, C. Alexa, V. Andreev, B. Antunovic, et al.. Charged Particle Production in High Q2 Deep-Inelastic Scattering at HERA. Physics Letters B, Elsevier, 2007, 654, pp.148-159. ⟨10.1016/j.physletb.2007.07.073⟩. ⟨in2p3-00171042⟩

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