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

Not scheduled
20m
Posters WG1: Structure Functions and Parton Densities WG1: Structure Functions and Parton Densities

Speakers

Emanuele Roberto Nocera Rabah Abdul Khalek (Nikhef) Valerio Bertone (C.E.A. Paris-Saclay) Alice Khoudli

Description

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 the data set, on theoretical and methodological assumptions, and on higher order corrections.

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