Journal
PHYSICAL REVIEW LETTERS
Volume 129, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.129.012002
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Funding
- CONICET
- ANPCyT
- UBACyT
- Deutsche Forschungsgemeinschaft (DFG) through the Research Unit FOR 2926 [40824754]
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In this study, we perform a global QCD analysis of parton-to-pion fragmentation functions at NNLO accuracy and fit the data from single-inclusive electron-positron annihilation and semi-inclusive deep-inelastic scattering multiplicity. We investigate the impact of NNLO corrections on the description of the data and resulting pion fragmentation functions.
We carry out a global QCD analysis of parton-to-pion fragmentation functions at next-to-next-to-leading order (NNLO) accuracy by performing a fit to the combined set of single-inclusive electron-positron annihilation and, for the first time, semi-inclusive deep-inelastic scattering multiplicity data. For the latter, we utilize the approximate NNLO QCD corrections that were derived recently within the threshold resummation formalism. We explore the impact of the NNLO corrections on the description of the semiinclusive deep-inelastic scattering datasets in various kinematic regimes and on the resulting pion fragmentation functions.
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