Phenomenology from SIDIS and $e^+e^-$ multiplicities
Abstract
This study is part of a project to investigate the transverse momentum dependence in parton distribution and fragmentation functions, analyzing (semi-)inclusive high-energy processes within a proper QCD framework. We calculate the transverse-momentum-dependent (TMD) multiplicities for annihilation into two hadrons (considering different combinations of pions and kaons) aiming to investigate the impact of intrinsic and radiative partonic transverse momentum and their mixing with flavor. Different descriptions of the non-perturbative evolution kernel are available on the market and there are 200 sets of flavor configurations for the unpolarized TMD fragmentation functions (FFs) resulting from a Monte Carlo fit of Semi-Inclusive Deep-Inelastic Scattering (SIDIS) data at Hermes. We build our predictions of multiplicities relying on this rich phenomenology. The comparison of these calculations with future experimental data (from Belle and Babar collaborations) will shed light on non-perturbative aspects of hadron structure, opening important insights into the physics of spin, flavor and momentum structure of hadrons.
Cite
@article{arxiv.1409.7227,
title = {Phenomenology from SIDIS and $e^+e^-$ multiplicities},
author = {Alessandro Bacchetta and Miguel G. Echevarria and Marco Radici and Andrea Signori},
journal= {arXiv preprint arXiv:1409.7227},
year = {2014}
}
Comments
Proceedings of the Fourth International Workshop on Transverse Polarization Phenomena in Hard Processes - Transversity 2014 - EPJ Web of Conferences LaTeX style