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arXiv · 2204.10331

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

Rabah Abdul Khalek·Valerio Bertone·Alice Khoudli·Emanuele R. Nocera
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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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Rabah Abdul Khalek, Valerio Bertone, Alice Khoudli, Emanuele R. Nocera. 2022-09-19. Pion and kaon fragmentation functions at next-to-next-to-leading order. https://doi.org/10.1016/j.physletb.2022.137456

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