26th International Symposium on Spin Physics (SPIN2025)

Fragmentation function studies at BESIII

Not scheduled

3h 30m

Oral Three-dimensional structure of the nucleon: transverse momentum dependent parton distributions Parallel

Speaker

Yateng Zhang (ZZU)

Description

Abstract: Fragmentation Function (FF) plays a crucial role in describing the hadronization process. We report the measurements of normalized differential cross sections of inclusive pi0 and Ks production as a function of hadron momentum at six energy points with q^2 transfer from 5 to 13 GeV^2 at BESIII. The results with a relative hadron energy coverage from 0.1 to 0.9 significantly deviate from several
theoretical calculations based on existing fragmentation functions.