LPN14-034 Quark and gluon spin-2 form factors to two-loops in QCD

LPN14-034 Quark and gluon spin-2 form factors to two-loops in QCD
D. de Florian, M. Mahakhud, P. Mathews, J. Mazzitelli, V. Ravindran
JHEP 1402 035 2014
arXiv