Test of NRQCD factorization for charmonium production at HERA ============================================================= Jungil Lee Univ. Hamburg Abstract: --------- The nonrelativistic QCD(NRQCD) factorization approach for the inclusive heavy quarkonium production in high energy process is reviewed. Recent phenomenological tests of NRQCD factorization formalism and future studies on the charmonium production at HERA are discussed. P.S. The developing program for the Tuesday seminar you can find at: http://www-h1.desy.de/~niebuhr/sem_schedule.html