arXiv:1903.12563
FERMILAB-PUB-19-100-T
CERN-TH-2019-038
SLAC-PUB-17411, UWTHPH-2019-9
LAPTH-019/19
CFTP/19-006
ZU-TH 16/19
LU-TP-19-10, MCnet-19-06
IPPP/19/22

by: Bellm, Johannes (Lund U.) et al.

Abstract:
We perform a phenomenological study of $Z$ plus jet, Higgs plus jet and di-jet production at the Large Hadron Collider. We investigate in particular the dependence of the leading jet cross section on the jet radius as a function of the jet transverse momentum. Theoretical predictions are obtained using perturbative QCD calculations at the next-to and next-to-next-to-leading order, using a range of renormalization and factorization scales. The fixed order predictions are compared to results obtained from matching next-to-leading order calculations to parton showers. A study of the scale dependence as a function of the jet radius is used to provide a better estimate of the scale uncertainty for small jet sizes. The non-perturbative corrections as a function of jet radius are estimated from different generators.