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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
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
Academic field: Physics
Specialties:
  • High-Energy Physics - Phenomenology
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)


Reports on this Submission

Anonymous Report 1 on 2022-2-7 (Invited Report)

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