Flavor dependence of Lambda polarized fragmentation functions

26 Apr 2025, 09:20
20m
口头报告 分会场三

Speaker

Yu-kun Song (University of Jinan)

Description

Sparked by measurements of the transverse polarization of $\Lambda$ by Belle, much efforts are devoted to the study of the polarized $\Lambda$ TMD fragmentation function (TMDFF) $D_{1T,q}^{\perp\Lambda}$. Several questions, such as the isospin symmetry and gluonic contributions, remain unsolved due to limited range of experimental data. Inspired by the upcoming measurements of $\Lambda$ transverse polarization in pp/pA/AA collisions, we develop a framework of global analysis of $D_{1T,q}^{\perp\Lambda}$ at NLO precision, with strigent controls over the uncertainties caused by the approximations in CS evolution. We perform a proof-of-principle calculations with the framework and refine our previous parametrizations on $D_{1T,q}^{\perp\Lambda}$.

Primary author

Yu-kun Song (University of Jinan)

Presentation materials