Fiducial $q_T$ resummation of color-singlet processes at N$^3$LL+NNLO

Thomas Becher; Tobias Neumann

Paper

Fiducial $q_T$ resummation of color-singlet processes at N$^3$LL+NNLO

Abstract

We present a framework for

resummation at N

LL+NNLO accuracy for arbitrary color-singlet processes based on a factorization theorem in SCET. Our implementation CuTe-MCFM is fully differential in the Born kinematics and matches to large-

fixed-order predictions at relative order

. It provides an efficient way to estimate uncertainties from fixed-order truncation, resummation, and parton distribution functions. In addition to

and

production, also the diboson processes

and

are available, including decays. We discuss and exemplify the framework with several direct comparisons to experimental measurements as well as inclusive benchmark results. In particular, we present novel results for

and

at N

LL+NNLO and discuss in detail the power corrections induced by photon isolation requirements.