HERMES measurements of Collins and Sivers asymmetries from a transversely polarised hydrogen target

Abstract

Azimuthal single-spin asymmetries (SSA) in semi-inclusive electroproduction of pi-mesons and charged K-mesons in deep-inelastic scattering of positrons and electrons on a transversely polarised hydrogen target were observed. Significant SSA amplitudes for both the Collins and the Sivers mechanism are presented for the full data set recorded with transverse target polarisation at the HERMES experiment.

arXiv commentTo appear in the proceedings of the 15th International Workshop on Deep Inelastic Scattering (DIS 07), Munich, Germany

References in corpus (6)

• Fragmentation of Transversely Polarized Quarks Probed in Transverse Momentum Distributions
• Time-reversal odd distribution functions in leptoproduction
• Final-State Interactions and Single-Spin Asymmetries in Semi-Inclusive Deep Inelastic Scattering
• Single-spin asymmetries in semi-inclusive deep-inelastic scattering on a transversely polarized hydrogen target
• Quark helicity distributions in the nucleon for up, down, and strange quarks from semi--inclusive deep--inelastic scattering
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