Modeling dihadron fragmentation functions
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
We present a model for dihadron fragmentation functions, describing the fragmentation of a quark into two unpolarized hadrons. We tune the parameters of our model to the output of the PYTHIA event generator for two-hadron semi-inclusive production in deep inelastic scattering at HERMES. Once the parameters of the model are fixed, we make predictions for other unknown fragmentation functions and for a single-spin asymmetry in the azimuthal distribution of pi+ pi- pairs in semi-inclusive deep inelastic scattering on a transversely polarized target at HERMES and COMPASS. Such asymmetry could be used to measure the quark transversity distribution function.
Keywords
Cite
@article{arxiv.hep-ph/0608037,
title = {Modeling dihadron fragmentation functions},
author = {Alessandro Bacchetta and Marco Radici},
journal= {arXiv preprint arXiv:hep-ph/0608037},
year = {2008}
}
Comments
16 pages, 10 figures