A study of the fragmentation of quarks in ep collisions at HERA

نویسنده

  • Paul Dixon
چکیده

Low x deep inelastic ep scattering data taken in using the H detector at HERA are analysed in the Breit frame of reference The evolution of the peak and width of the fragmentation function is presented as a function of the magni tude of the four momentum transfer of the exchanged photon Q and compared with e e results at equivalent centre of mass energies Clear evidence for scaling violations in ep fragmentation functions as a function of Q is shown Di erences between the average charged multiplicity and the multiplicity of e e annihila tions at low energies are discussed

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تاریخ انتشار 2012