Λ polarizing fragmentation function from Belle e⁺e^- data

2021/07/30 by U. D’Alesio, D'Alesio, Umberto, F. Murgia +3 · 1 citation
Computer Science · Physics and Astronomy · #Advanced Data Storage Technologies #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2108.00072

openalex publication_date 2021/07/30 · openalex created_date 2022/07/15 · openalex updated_date 2026/07/28

Abstract

Experimental data from Belle Collaboration for the transverse polarization of Λ'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 Λ 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.

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