Speaker
Description
NA61/SHINE is a fixed-target experiment at the CERN SPS. Its spectrometer has unique properties including large particle acceptance and precise momentum measurement. These properties together with high statistics of collected proton-proton collisions at beam momentum 158 GeV/c allow analyzing the transverse polarization of $\Lambda$ hyperons produced in the primary vertex.
The opportunities for measurements of transverse polarization of $\Lambda$ hyperons in NA61/SHINE were studied based on Monte-Carlo simulations and the results will be presented. Especially, the biasing impact of magnetic field on polarization will be discussed in detail. The results suggest that the bias of $\Lambda$ polarization due to precession in the magnetic field is limited and less than biases due to limited detector acceptance.