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HK: Physik der Hadronen und Kerne

HK 30: Elektromagnetische und Hadronische Proben

HK 30.6: Talk

Tuesday, March 8, 2005, 18:00–18:15, TU MA001

Longitudinal Λ polarization in the COMPASS experiment — •Donghee Kang, H. Fischer, J. Franz, S. Hedicke, F.H. Heinsius, M. von Hodenberg, K. Königsmann, D. Matthiä, C. Schill, D. Setter, and S. Trippel — Physikalisches Institut, Universität Freiburg

At the COMPASS experiment at CERN Λ and Λ particles are produced in the deep inelastic scattering process with high statistics. The main focus of the research is the understanding of the longitudinal Λ and Λ polarization and the spin transfer mechanism through fragmentation processes. The Λ and Λ polarization can be studied by measuring the acceptance corrected angular distribution of its decay products. The results of the longitudinal polarization and spin transfer will be compared and discussed with further measurements. The project is supported by BMBF.