Fragmentation functions and their role in determining the polarized parton densities

Details Fragmentation functions and their role in determining the polarized parton densities Fragmentation functions and their role in determining the polarized parton densities

2002-09-05

arxiv.org/abs/hep-ph/0209055v1

Acta Phys.Polon. B33 (2002) 3743-3748

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 Figures, a talk presented by E. Leader at the X International Workshop on Deep Inelastic Scattering (DIS2002) in Kr

Scientific paper

We extract the pion fragmentation functions and their uncertainties from a
judicious choice of e+e- and semi-inclusive DIS data. These are used to study
the error propagation in the extraction of polarized parton densities from
semi-inclusive DIS asymmetries. We conclude that the uncertainties on polarized
PDs have been underestimated in the past.

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