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 and high statistics of collected proton-proton collisions at beam momentum 158 GeV/c allow analyzing the transverse polarization of Λ hyperons produced in the primary vertex.
The opportunities for measurements of transverse polarization of Λ hyperons in NA61/SHINE were studied based on Monte-Carlo simulations using EPOS and Fritiof models, and the results will be presented. Especially, the biasing impact of magnetic field on polarization will be discussed in detail. The results show that the bias of Λ polarization due to precession in the magnetic field is limited and less than biases due to limited detector acceptance.
