Soft-gluon Resummation for High-pT Inclusive-Hadron Production at COMPASS
High Energy Physics - Phenomenology
2015-06-16 v2
Abstract
We study the cross section for the photoproduction reaction gamma N -> h X in fixed-target scattering at COMPASS, where the hadron h is produced at large transverse momentum. We investigate the role played by higher-order QCD corrections to the cross section. In particular we address large logarithmic "threshold" corrections to the rapidity dependent partonic cross sections, which we resum to all orders at next-to-leading accuracy. In our comparison to the experimental data we find that the threshold contributions are large and improve the agreement between data and theoretical predictions significantly.
Keywords
Cite
@article{arxiv.1305.6468,
title = {Soft-gluon Resummation for High-pT Inclusive-Hadron Production at COMPASS},
author = {Daniel de Florian and Melanie Pfeuffer and Andreas Schafer and Werner Vogelsang},
journal= {arXiv preprint arXiv:1305.6468},
year = {2015}
}
Comments
13 pages, 7 figures, journal version