New results on SIDIS SSA from Jefferson Lab
H. Avakian, P. Bosted, V. Burkert, L. Elouadrhiri
Abstract
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 2ϕ and ϕ asymmetries have been observed. The hypothesis of factorization has been tested with z-dependence of the double spin asymmetry.
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