We present an extraction of unpolarised Transverse-Momentum-Dependent Parton Distribution Functions based on Drell-Yan production data from different experiments, including those at the LHC, and spanning a wide kinematic range. We deal with experimental uncertainties by properly taking into account correlations. We include resummation of logarithms of the transverse momentum of the vector boson up to N3LL order, and we include non-perturbative contributions. These ingredients allow us to obtain a remarkable agreement with the data.
@article{arxiv.1912.07550,
title = {Transverse-momentum-dependent parton distributions up to N$^3$LL from Drell-Yan data},
author = {Alessandro Bacchetta and Valerio Bertone and Chiara Bissolotti and Giuseppe Bozzi and Filippo Delcarro and Fulvio Piacenza and Marco Radici},
journal= {arXiv preprint arXiv:1912.07550},
year = {2020}
}
Comments
Latest version: added panels in Fig. 4, added chi2 values in Fig. 8, changes in App. C, extended discussion on comparison with ATLAS data (Sec. 4.1), footnote 5 added, other small changes in the text