New results on SIDIS SSA from Jefferson Lab

We present studies of single‐spin and double‐spin asymmetries in semi‐inclusive electroproduction of pions using the CEBAF 6 GeV polarized electron beam. Kinematic dependences of single and double spin asymmetries have been measured in a wide kinematic range at CLAS with a polarized NH3 target. Significant target‐spin sin 2φ and sinφ asymmetries have been observed. The hypothesis of factorization has been tested with z‐dependence of the double spin asymmetry.