January 2008, to be published in Physical Review D1


Helicity amplitudes for charmonium production in hadron-hadron and photon-hadron collisions
M. M. Meijer, J. Smith, and W. L. van Neerven

We present the gluon-gluon and photon-gluon helicity amplitudes for color singlet and octet charmonium production in polarized and unpolarized hadron-hadron and photon-hadron collisions.

© 2008 The American Physical Society.