Breakdown of QCD Factorization for P-Wave Quarkonium Production at Low Transverse Momentum
High Energy Physics - Phenomenology
2015-06-19 v2
Abstract
Quarkonium production at low transverse momentum in hadron collisions can be used to extract Transverse-Momentum-Dependent(TMD) gluon distribution functions, if TMD factorization holds there. We show that TMD factorization for the case of P-wave quarkonium with holds at one-loop level, but is violated beyond one-loop level. TMD factorization for other P-wave quarkonium is also violated already at one-loop.
Keywords
Cite
@article{arxiv.1405.3373,
title = {Breakdown of QCD Factorization for P-Wave Quarkonium Production at Low Transverse Momentum},
author = {J. P. Ma and J. X. Wang and S. Zhao},
journal= {arXiv preprint arXiv:1405.3373},
year = {2015}
}
Comments
Published version in Physics Letters B (2014), pp. 103-108