Pion and kaon fragmentation functions at next-to-next-to-leading order

RA Khalek, V Bertone, A Khoudli, ER Nocera - Physics Letters B, 2022 - Elsevier
We present a new determination of unpolarised charged pion and kaon fragmentation
functions from a set of single-inclusive electron-positron annihilation and lepton-nucleon …

Determination of unpolarized pion fragmentation functions using semi-inclusive deep-inelastic-scattering data

R Abdul Khalek, V Bertone, ER Nocera - Physical Review D, 2021 - APS
We present mapff1. 0, a determination of unpolarized charged-pion fragmentation functions
(FFs) from a set of single-inclusive e+ e-annihilation and lepton-nucleon semi-inclusive …

Helicity-dependent parton distribution functions at next-to-next-to-leading order accuracy from inclusive and semi-inclusive deep-inelastic scattering data

V Bertone, A Chiefa, ER Nocera - arXiv preprint arXiv:2404.04712, 2024 - arxiv.org
We present MAPPDFpol1. 0, a new determination of the helicity-dependent parton
distribution functions (PDFs) of the proton from a set of longitudinally polarised inclusive and …

Exploring the substructure of nucleons and nuclei with machine learning

RA Khalek - arXiv preprint arXiv:2110.01924, 2021 - arxiv.org
Perturbative quantum chromodynamics (QCD) ceases to be applicable at low interaction
energies due to the rapid increase of the strong coupling. In that limit, the non-perturbative …