$\Lambda$ particle is an excellent tool for probing spin effects due to its self-analyzing weak decay.
We study the longitudinally polarized $\Lambda$ production in semi-inclusive deep inelastic scattering.
In particular, we propose a method based on the spectator diquark model to directly calculate the contributions from the target fragmentation region.
The results indicate that these contributions significantly suppress the longitudinal spin transfer to $\Lambda$ from the current fragmentation region, thereby describing the experimental data from COMPASS, HERMES and CLAS12 quite well.
Volume 469 -
31st International Workshop on Deep Inelastic Scattering (DIS2024) -
WG5: Spin and 3D Structure
Longitudinal spin transfer of semi-inclusive $\Lambda$ production in deep inelastic scattering
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Pre-published on:
December 27, 2024
Published on:
January 16, 2025
Abstract
DOI: https://doi.org/10.22323/1.469.0209
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.