Speaker
Description
Deep inelastic scattering is an established approach to study nucleon structures. Owing to the self-analyzing weak decay, the $\Lambda$ production in DIS and its polarization are expected as sensitive observables to the spin structure of the strange sea. In this talk, we will demonstrate the importance to understand the origin or the hadronization mechanism of the $\Lambda$ production, and propose to take advantage of spin as a powerful probe. We find that the spin transfer can be significantly suppressed by the target fragmentation mechanism. With this effect taken into account, experimental data can be well described, which alleviates the tension between data and current fragmentation predictions, offering a new perspective to explore the hadronization mechanism in DIS.
