$\Lambda$ Polarizing Fragmentation Function from Belle $e^+e^-$ data

15 Apr 2021, 10:18
18m
Virtual (Stony Brook, NY)

Virtual

Stony Brook, NY

Online
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 $\Lambda$'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 $\Lambda$ 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.

Primary author

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

Co-authors

Francesco Murgia (INFN Cagliari) Marco Zaccheddu (Cagliari University and INFN Cagliari)

Presentation materials