Sum rules for the T-odd fragmentation functions
High Energy Physics - Phenomenology
2009-10-31 v3
Abstract
The conservation of the intrinsic transverse momentum during parton fragmentation imposes non-trivial constraints on T-odd fragmentation functions. These significantly enhance the differences between the favoured and unfavoured fragmentation functions, which could be relevant to understand the azimuthal asymmetries of charged pion production observed recently by the HERMES collaboration.
Cite
@article{arxiv.hep-ph/9908412,
title = {Sum rules for the T-odd fragmentation functions},
author = {A. Schaefer and O. V. Teryaev},
journal= {arXiv preprint arXiv:hep-ph/9908412},
year = {2009}
}
Comments
LATEX, 5 pages; Phys. Rev. D61 (2000) 077903