We describe a simultaneous determination of unpolarized FFs of charged pions, charged kaons, and protons/antiprotons from single-inclusive hadron production in electron-positron annihilation (SIA) data at next-to-leading order and next-to-next-to-leading order accuracy in perturbative QCD. We include data for identified light charged hadrons as well as for unidentified light charged hadrons, and show that these data have a significant impact on both size and uncertainties of the fragmentation functions. We examine the inclusion of higher-order perturbative QCD corrections and finite-mass effects. We compare the new SGKS20 FFs with other recent FFs available in the literature and find in general reasonable agreement, but also important differences for some parton species. We show that theoretical predictions obtained from our new FFs are in very good agreement with the analyzed SIA data, especially at small values of z.
|Collaboration / Activity||SGKS20|
|First author||Maryam Soleymaninia|