Target Fragmentation at Polarized HERA: A Test of Universal Topological Charge Screening in QCD

Details Target Fragmentation at Polarized HERA: A Test of Universal Topological Charge Screening in QCD Target Fragmentation at Polarized HERA: A Test of Universal Topological Charge Screening in QCD

1997-11-17

arxiv.org/abs/hep-ph/9711353v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contribution to the proceedings of the 1997 Workshop on `Physics with Polarized Protons at HERA', DESY-Hamburg, DESY-Zeuthen a

Scientific paper

Topological charge screening has been proposed as the mechanism responsible for the anomalous suppression in the first moment of the polarized proton structure function -- the `proton spin' effect. An immediate consequence is that this suppression should be target-independent, since the screening is a fundamental property of the QCD vacuum. Here, we study the possibility of testing the target-independent suppression in semi-inclusive target fragmentation processes at polarized HERA.

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