Abstract
The measurement of single spin asymmetries in semi‐inclusive deep‐inelastic scattering (SIDIS) on a transversely polarized target is an important part of the COMPASS physics program. It allows us to investigate the transversity distribution functions as well as transverse momentum dependent distribution functions by measuring azimuthal asymmetries in the hadron production. After COMPASS took data in the years 2002–2004 by scattering a 160 GeV/c muon beam off a transversely polarized deuteron (6LiD) target, in 2007 additional data was collected on a transversely polarized proton (NH3) target. In this contribution, the latest results on the Collins and Sivers asymmetries in single hadron production as well as two‐hadron asymmetries from the analysis of the proton data are presented and compared with existing model predictions.
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