Investigations of Quark Fragmentation Universality

Details Investigations of Quark Fragmentation Universality Investigations of Quark Fragmentation Universality

1998-11-03

arxiv.org/abs/hep-ph/9811229v1

Eur.Phys.J.C9:579-588,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 7 ps figures

Scientific paper

10.1007/s100529900026

We propose event cuts in deep inelastic scattering, suitable for an examination of quark fragmentation universality. We compare the current hemisphere of the Breit frame with hemispheres in e+e- annihilation events, using Monte Carlo simulations. The agreement between the two processes is improved after the suggested events cuts. A method to study the scale evolution in quark hemispheres using data from fixed energy e+e- experiments is presented. This makes it possible to use the high statistics from LEP1 also at scales below the Z mass. We also discuss observables which are sensitive to the dynamics of regions closer to the remnant. The observables probes the relatively clean region on the current side of the hardest emission in the event, and can be used to distinguish between different assumptions about remnant effects and mechanisms for the parton evolution.

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