Mainz 2004 – wissenschaftliches Programm
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T: Teilchenphysik
T 507: QCD IV
T 507.3: Vortrag
Mittwoch, 31. März 2004, 16:45–17:00, RW 5
Measurement of Lambda Polarisation in the COMPASS Experiment — •J. Friedrich, M. Wiesmann, M. Becker, R. de Masi, A.-M. Fuchs, S. Gerassimov, B. Grube, B. Ketzer, I. Konorov, R. Kuhn, S. Paul, L. Schmitt, and Q. Weitzel — TU München, Physik Department E18
We present first results on transverse Lambda polarization from the 2002 COMPASS run at the CERN SPS. With the 160 GeV polarized muon beam on a polarized LiD target, Lambda and Antilambda production with quasi-real photons (Q2<0.5 GeV2) was observed.
A measurement of transverse Lambda and Antilambda polarization was performed using the bias-cancelling method in order to minimize systematic effects. The polarization is studied in dependence on the kinematic variables xF and pt.
This work is supported by the BMBF and the Maier-Leibnitz-Labor, Garching.