EPJ

2023 Impact factor 4.2
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 11, 251-270
DOI 10.1007/s100529900158

Measurement of multiplicity and momentum spectra in the current and target regions
of the Breit frame in Deep Inelastic Scattering at HERA

The ZEUS Collaboration

J. Breitweg - et al.

Argonne National Laboratory, Argonne, IL, USA

Received: 23 March 1999 / Published online: 3 August 1999

Abstract
Charged particle production in neutral current deep inelastic scattering (DIS) has been studied using the ZEUS detector. The evolution of the mean multiplicities, scaled momenta and transverse momenta in Q2 and xfor $ 10 < Q^2 < 5120\ {\rm GeV^2}$ and $x > 6\times 10^{-4}$ has been investigated in the current and target fragmentation regions of the Breit frame. Distributions in the target region, using HERA data for the first time, are compared to distributions in the current region. Predictions based on MLLA and LPHD are inconsistent with the data.

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