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Sep 24 – 29, 2023
US/Eastern timezone

Longitudinal spin transfer of semi-inclusive $\Lambda$ production in deep inelastic scattering

Sep 26, 2023, 9:00 AM
15m
Meeting Room 1-2 (Durham Convention Center)

Meeting Room 1-2

Durham Convention Center

Talk 3D Structure of the Nucleon: TMDs 3D Structure of the Nucleon: TMDs

Speaker

Dr Xiaoyan Zhao

Description

We study the longitudinal spin transfer of $\Lambda$-hyperon production in semi-inclusive deep inelastic scattering with both current and target fragmentation mechanisms. For existing fixed-target experiments, such as JLab and COMPASS, the events from the current region and those from the target fragmentation region are not clearly separated. We find that the contribution from the target fragmentation can significantly suppress the spin transfer to the $\Lambda$ measured at existing experiments. We also perform a model estimation to quantitatively demonstrate this effect and the results are compared with COMPASS data.

Primary authors

Presentation materials