1). pi0 A_{N} vs x_{F}

 





2). pi0 A_{N} vs p_{T}




compared with twist-3 theory calculations with combined initial-/final-state contributions (Kanazawa et.al. PhysRevD.89.111501)











3). pi0 Collins asymmetry A_UT vs Z_{EM}





4). pi0 Collins asymmetry vs x_{F}