Eur. Phys. J. C (2012) 72: 2195
https://doi.org/10.1140/epjc/s10052-012-2195-7

Regular Article - Theoretical Physics

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

¹ INFN, Sezione di Firenze and Dipartimento di Fisica e Astronomia, Università di Firenze, 50019, Sesto Fiorentino, Florence, Italy
² Departamento de Física, FCEYN, Universidad de Buenos Aires, (1428) Pabellón 1 Ciudad Universitaria, Capital Federal, Argentina
³ Dipartimento di Fisica, Università di Milano and INFN, Sezione di Milano, 20133, Milan, Italy
⁴ Institut für Theoretische Physik, Universität Zürich, 8057, Zürich, Switzerland

^* e-mail: grazzini@physik.uzh.ch

Received: 22 August 2012
Published online: 3 November 2012

Abstract

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.