Köln 2004 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 17: Electromagnetic and Hadronic Probes II

HK 17.6: Vortrag

Dienstag, 9. März 2004, 17:15–17:30, B

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

At the COMPASS experiment at CERN Λ particles are produced in semi-inclusive deep inelastic scattering process with high statistics. The main focus of the research is the understanding of the longitudinal Λ polarisation and the spin transfer mechanism through fragmentation processes. The Λ polarisation can be studied by measuring the angular distribution of its decay products. The Monte Carlo studies for the acceptance corrections and the measurement of the Longitudinal Λ polarisation will be presented. The project is supported by BMBF.