QCD factorization for hadronic quarkonium production at high $p_T$

Heavy quarkonium production at high transverse momentum ( p_T pT ) in hadronic collisions is explored the QCD factorization approach. We find that leading power 1/p_T display="inline">1/pT expansion responsible for regime, while next-to-leading contribution necessary low region. present first numerical analysis of scale evolution coupled twist-2 and twist-4 fragmentation functions (FFs) heavy demonstrate approach capable describing spectrum J/\psi display="inline">J/? LHC.