The scaled momentum spectra of final state charged hadrons produced in Deep
Inelastic Scattering in the ranges
10 <
Q2 < 1280 GeV
2 and
have been measured
in the current region of the Breit frame using the ZEUS detector.
The evolution with
Q2 of the scaled momentum,
,
has been investigated and preliminary results are presented which show evidence
for scaling violations and support for the universality of quark fragmentation.