Global Analysis of Fragmentation Functions for Protons and Charged Hadrons

TL;DR

This paper introduces new fragmentation functions for protons and charged hadrons derived from combined NLO QCD analyses across multiple processes, enhancing understanding of hadronization with quantified uncertainties.

Contribution

It provides new sets of fragmentation functions for protons and charged hadrons, including charge and flavor discrimination, based on comprehensive NLO QCD analyses.

Findings

New fragmentation functions for protons and charged hadrons

Quantified uncertainties using Lagrange multiplier technique

Complement previous pion and kaon fragmentation results

Abstract

We present new sets of fragmentation functions for protons and inclusive charged hadrons obtained in combined NLO QCD analyses of single-inclusive hadron production in electron-positron annihilation, proton-proton collisions, and deep-inelastic lepton-proton scattering. These analyses complement previous results for pion and kaon fragmentation functions with charge and flavor discrimination. The Lagrange multiplier technique is used to assess the uncertainties in the extraction of the new sets of fragmentation functions.