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$\Lambda$ Polarizing Fragmentation Function from Belle $e^+ e^-$ data
by Umberto D'Alesio, Francesco Murgia and Marco Zaccheddu
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Submission summary
| Authors (as registered SciPost users): | Umberto D'Alesio |
| Submission information | |
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| Preprint Link: | scipost_202107_00097v1 (pdf) |
| Date accepted: | 2022-05-06 |
| Date submitted: | 2021-07-30 21:48 |
| Submitted by: | D'Alesio, Umberto |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Phenomenological |
Abstract
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, leading to four independent FFs. Predictions for SIDIS processes at the EIC, crucial for understanding their universality and evolution properties, are also presented.
Published as SciPost Phys. Proc. 8, 131 (2022)