Coordinator: Peter Berglund
The LTL joined the Spin Muon Collaboration (SMC) NA47 in 1991 with the task of building a large dilution refrigerator to cool the polarised target. This refrigerator, the largest in the world, was operated very sucessfully until 1996 when SMC was completed. The sucessor of SMC, the COMPASS experiment, continued to investigate the spin content of the nucleon, using the same equipment, but considerably modified by us. Our COMPASS participation lasted from 1998 to the end of 2003 when we decided to resign from the collaboration as the timescale of the experiment and the particle physics research was outside the scope of the research policy of the LTL. However, our long standing contributions still make us co-authors of COMPASS publications.