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Identified Hadron Production in Deeply Inelastic Neutrino-Nucleon Scattering

Leonardo Bonino, Thomas Gehrmann, Markus Löchner, and Kay Schönwald

Giovanni Stagnitto

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Phys. Rev. Lett. 135, 211902 – Published 17 November, 2025

DOI: https://doi.org/10.1103/rr84-wlt3

Abstract

The production of identified hadrons in semi-inclusive deep-inelastic scattering (SIDIS) is sensitive to parton distribution functions and hadron fragmentation functions. Neutrino-induced SIDIS processes probe combinations of these functions differently from their charged-lepton-induced counterparts. We compute charged pion production in (anti)neutrino-induced SIDIS up to second order in perturbative QCD and compare our predictions to precise legacy fixed-target data. We demonstrate the high sensitivity of these data on the parametrization of the fragmentation functions and discuss future SIDIS probes at the LHC Forward Physics Facility.

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Phys. Rev. Lett. 135, 211902– Published 17 November, 2025
  • Received 11 April 2025
  • Revised 7 October 2025
  • Accepted 4 November 2025
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