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 GeV"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. (orig.)Available from TIB Hannover: RA 2999(97-183) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman