1209.0158 (S. Catani et al.)

Vector boson production at hadron colliders: hard-collinear coefficients
at the NNLO    [PDF]

S. Catani, L. Cieri, D. de Florian, G. Ferrera, M. Grazzini

We consider QCD radiative corrections to vector-boson production in hadron collisions. We present the next-to-next-to-leading order (NNLO) result of the hard-collinear coefficient function for the all-order resummation of logarithmically-enhanced contributions at small transverse momenta. The coefficient function controls NNLO contributions in resummed calculations at full next-to-next-to-leading logarithmic accuracy. The same coefficient function is used in applications of the subtraction method to perform fully-exclusive perturbative calculations up to NNLO.

View original: http://arxiv.org/abs/1209.0158