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

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

2007-06-18

arxiv.org/abs/0706.2456v1

Phys.Lett.B654:148-159,2007

Physics

High Energy Physics

High Energy Physics - Experiment

20 pages, 5 figures

Scientific paper

10.1016/j.physletb.2007.07.073

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.

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