These processes represent the production of a Z boson and a single jet, where the Z subsequently decays either into electrons (nproc=41), neutrinos (nproc=42) or bottom quarks (nproc=43). Where appropriate, the effect of a virtual photon is also included. The calculation may be performed at LO and NLO and NNLO[1] although the NLO, (NNLO) calculation of process 43 does not include radiation from the bottom quarks. The one-loop virtual amplitudes are taken from the appendix IV of ref. [2].

When removebr is true in process 41, the Z boson does not decay.

nplotter_Zjets.f is the default plotting routine.

[1]
T. Neumann
and
J. Campbell,
Fiducial
Drell-Yan
production
at
the
LHC
improved
by
transverse-momentum
resummation
at
N^{4}LL+N^{3}LO,
2207.07056.

[2] Z. Bern, L.J. Dixon and D.A. Kosower, One loop amplitudes for e+ e- to four partons, Nucl. Phys. B513 (1998) 3 [hep-ph/9708239].