A new NLO global fit to LHC, RHIC, and JLab data supports effective nuclear fragmentation functions, with quark fragmentation strongly suppressed and gluon fragmentation moderately enhanced inside heavy nuclei, though with known limitations at high pT.
Medium modified Fragmentation Functions with open source xFitter
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abstract
A new analysis of the modification of the hadronization process in the nuclear medium for pions is presented. The effective description is condensed in a set of medium modified fragmentation functions (nFFs) obtained at next-to-leading order (NLO) accuracy. The study was made using the open-source tool xFitter, conveniently modified to incorporate semi-inclusive processes. Theoretical uncertainties for the nFFs are also provided.
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Pion Nuclear Fragmentation Functions Revisited
A new NLO global fit to LHC, RHIC, and JLab data supports effective nuclear fragmentation functions, with quark fragmentation strongly suppressed and gluon fragmentation moderately enhanced inside heavy nuclei, though with known limitations at high pT.