XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects

Λ Polarizing Fragmentation Function from Belle e+e− data

15 Apr 2021, 10:18

18m

Virtual (Stony Brook, NY)

Contributed Talk Spin Physics Spin Physics

Speaker

Prof. Umberto D'Alesio (University and INFN Cagliari)

Description

Experimental data from Belle Collaboration for the transverse polarization of $\mathrm{\Lambda }$'s measured in $e^{+}{e}^{-}$ annihilation processes are used to extract the polarizing fragmentation function (FF) within a TMD approach.
We consider both associated and inclusive $\mathrm{\Lambda }$ production, showing a quite consistent scenario. Good separation in flavor is obtained, with four independent FFs. Predictions for SIDIS processes at EIC, crucial for understanding their universality and evolution properties, are also presented.

Presentation materials

DIS2021_PT_Lambda.pdf

Youtube Link