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arXiv · 2110.14015

Pion Fragmentation Functions at High Energy Colliders

Ignacio Borsa·Daniel de Florian·Rodolfo Sassot·Marco Stratmann
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Abstract

We revisit the description of pion production in proton-proton collisions in the light of the very precise data taken at the Large Hadron Collider (LHC) over the past decade. First attempts to include LHC results in next-to-leading order global QCD analyses of parton-to-pion fragmentation functions insinuated some conflict between data sets at different center-of-mass system energies. We show that the data can be well described within their uncertainties by a consistent set of pion fragmentation functions once the theoretical scale dependence is taken into account in the global QCD analysis.

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Ignacio Borsa, Daniel de Florian, Rodolfo Sassot, Marco Stratmann. 2021-10-26. Pion Fragmentation Functions at High Energy Colliders. https://doi.org/10.1103/physrevd.105.l031502

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