Observation of Scaling Violations in Scaled Momentum Distributions at HERA

Abstract

Charged particle production has been measured in deep inelastic scattering (DIS) events over a large range of $x$ and $Q^2$ using the ZEUS detector. The evolution of the scaled momentum, $x_p$, with $Q^2,$ in the range 10 to 1280 $Ge{V}^2$, has been investigated in the current fragmentation region of the Breit frame. The results show clear evidence, in a single experiment, for scaling violations in scaled momenta as a function of $Q^2$.

arXiv comment21 pages including 4 figures, to be published in Physics Letters B. Two references added

References in corpus (7)

• Pinning down the Glue in the Proton
• Parton Distributions of the Proton
• Next-to-Leading Order Fragmentation Functions for Pions and Kaons
• Measurement of the F2 structure function in deep inelastic scattering using 1994 data from the ZEUS detector at HERA
• Measurement of multiplicity and momentum spectra in the current fragmentation region of the Breit frame at HERA
• A Study of the Fragmentation of Quarks in $e^{-}p$ Collisions at HERA
• Jet production in high Q^2 deep-inelastic eo scattering at HERA

Cited by in corpus (8)

• Measurement of the jet fragmentation function and transverse profile in proton-proton collisions at a center-of-mass energy of 7 TeV with the ATLAS detector
• The Hadronic Final State at HERA
• The hadronization of partons
• Charged Particle Production in High Q2 Deep-Inelastic Scattering at HERA
• Confronting fragmentation function universality with single hadron inclusive production at HERA and $e^{+}{e}^{-}$ colliders
• Scaled momentum spectra in deep inelastic scattering at HERA
• Scaled momentum distributions for K0s and Lambda/bar Lambda in DIS at HERA
• Fragmentation in DIS