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Title Pion and kaon fragmentation functions at next-to-next-to-leading order
Authors Rabah Abdul Khalek,Valerio Bertone,Alice Khoudli,Emanuele R. Nocera
JLAB number JLAB-THY-22-3605
LANL number arXiv:2204.10331
Other number DOE/OR/23177-5479
Document Type(s) (Journal Article) 
Associated with EIC: No
Supported by Jefferson Lab LDRD Funding: No
Funding Source: Nuclear Physics (NP)

Compiled for Physics Letters B
Publication Abstract: 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 semi-inclusive deep-inelastic scattering data. The determination includes next-to-next-to-leading order QCD corrections to both processes, and is carried out in a framework that combines a neural-network parametrisation of fragmentation functions with a Monte Carlo representation of their uncertainties. We discuss the quality of the determination, in particular its dependence on higher order corrections.
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