Apr 8 – 12, 2024
Maison MINATEC, Grenoble, FRANCE
Europe/Paris timezone

Simultaneous Determination of Fragmentation Functions and Test on Momentum Sum Rule

Apr 9, 2024, 6:20 PM
Maison MINATEC, Grenoble, FRANCE

Maison MINATEC, Grenoble, FRANCE

3 Parv. Louis Néel, 38054 Grenoble
Regular parallel talk WG1: Structure Functions and Parton Densities WG1


Jun Gao (Shanghai Jiaotong University)


We perform a simultaneous global analysis of hadron fragmentation functions (FFs) to various charged hadrons at next-to-leading order in QCD. The world data set includes results from electron-positron single-inclusive annihilation, semi-inclusive deep inelastic scattering, as well as proton-proton collisions including jet fragmentation measurements which lead to strong constraints on the gluon fragmentations. By carefully selecting hadron kinematics to ensure the validity of QCD factorization and the convergence of perturbative calculations, we achieve a satisfying best fit with $\chi^2$/d.o.f=0.90, in the simultaneous extraction of FFs for light charged hadrons($\pi^{\pm}$, $K^{\pm}$ and $p/\bar p$). The total momentum of u,d quarks and gluon carried by light charged hadrons have been determined precisely.

Primary author

Jun Gao (Shanghai Jiaotong University)


Presentation materials