Fragmentation functions of charged hadrons

TL;DR

This paper presents a preliminary NLO determination of fragmentation functions for unidentified charged hadrons using electron-positron annihilation data, extending previous work on identified hadrons and demonstrating their applicability to proton-(anti)proton collisions.

Contribution

It introduces a new determination of charged hadron fragmentation functions at NLO, expanding upon prior identified hadron FFs and applying them to hadron collision spectra.

Findings

FFs describe charged hadron spectra well

Extension of FFs to unidentified charged hadrons

Validation against proton-(anti)proton collision data

Abstract

I present a preliminary determination of the Fragmentation Functions (FFs) of unidentified charged hadrons at next-to-leading order in quantum chromodynamics. The analysis is based on hadron production cross section data in single-inclusive electron-positron annihilation. It extends a recent determination of the FFs of identified charged pions, charged kaons and protons/antiprotons performed by the NNPDF Collaboration. I illustrate the quality of the FFs determined in this analysis and show how they describe the charged hadron spectra measured in proton-(anti)proton collisions.