The recent data on the transverse single spin asymmetry AUTsin(ϕh+ϕS) from HERMES and COMPASS Collaborations are analysed within LO parton model with unintegrated parton distribution and fragmentation functions. A fit of SIDIS data from HERMES Collaboration is performed leading to the extraction of favoured and unfavoured Collins fragmentation functions. A very good description of COMPASS data is obtained. BELLE e+e− data are shown to be compatible with our estimates based on the extracted Collins fragmentation functions. Predictions for AUTsin(ϕh+ϕS) asymmetries at JLab and COMPASS operating on a proton target are given.
@article{arxiv.hep-ph/0612087,
title = {Collins Effect from Polarized SIDIS and $e^+e^-$ Data},
author = {A. Prokudin and C. Turk},
journal= {arXiv preprint arXiv:hep-ph/0612087},
year = {2008}
}