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

The H1 collaboration Aaron, F.D. ; Aktas, A. ; Alexa, C. ; et al.

Phys.Lett.B 654 (2007) 148-159, 2007.

Inspire Record 753349 DOI 10.17182/hepdata.45525

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.

11 data tables

Table 1

Average values of Q and X (plus errors) for the different Q**2 ranges.

Table 2

Average charged hadron multiplicity as a function of Q**2.

Table 3

Normalised distribution of the scaled momentum as a function of Q**2 in the X range 0 to 0.02.