Azimuthal asymmetries at CLAS: Extraction of e^a(x) and prediction of   A_{UL}
  First information on the chirally odd twist-3 proton distribution function e(x) is extracted from the azimuthal asymmetry, A_{LU}, in the electro-production of pions from deeply inelastic scattering of longitudinally polarized electrons off unpolarized protons, which has been recently measured by CLAS collaboration. Furthermore parameter-free predictions are made for azimuthal asymmetries, A_{UL}, from scattering of an unpolarized beam on a polarized proton target for CLAS kinematics. 
A.V. Efremov (Dubna, JINR), K. Goeke (Ruhr U., Bochum), P. Schweitzer   (Pavia U.)