Longitudinal polarization of $\Lambda$ and $\bar{\Lambda }$ in deep-inelastic scattering at COMPASS

Abstract

Production of $\Lambda$ and $\bar{\Lambda }$ hyperons in deep-inelastic scattering of 160 GeV/c polarized muons is under study in the COMPASS (CERN NA58) experiment. Preliminary results on longitudinal polarization of the hyperons from the data collected during the 2002 run are presented.

6 pages, 4 figures, submitted to the Proceedings of XVII International Baldin Seminar "Relativistic Nuclear Physics and Quantum Chromodynamics", Dubna, 2004