Name: CMS_2018_I1667854
Year: 2018
Summary: Differential cross section of Z boson production in association with jets in proton-proton collisions at $\sqrt{s} = 13\,$TeV
Experiment: CMS
Collider: LHC
InspireID: 1667854
Status: VALIDATED
Reentrant: true
Authors:
  - cms-pag-conveners-smp@cern.ch
  - Philippe Gras <philippe.gras@cern.ch>
References:
  - CMS-SMP-16-015
  - https://inspirehep.net/record/1667854
RunInfo:
  'Run MC generators with Z decaying leptonically into both electrons and muons at 13 TeV CoM energy. If
  only one of the two decay channels is included, set LMODE accordingly.'
NeedCrossSection: yes
Beams: [p+, p+]
Energies: [13000]
Luminosity_fb: 2.19
Options:
 - LMODE=EL,MU,EMU
Description:
  'The production of a Z boson, decaying to two charged leptons, in association with jets in proton-proton
  collisions at a centre-of-mass energy of 13 TeV is measured. Data recorded with the CMS detector at the
  LHC are used that correspond to an integrated luminosity of 2.19$\,$fb$^{-1}$. The cross section is measured
  as a function of the jet multiplicity and its dependence on the transverse momentum of the Z boson, the jet
  kinematic variables (transverse momentum and rapidity), the scalar sum of the jet momenta, which quantifies
  the hadronic activity, and the balance in transverse momentum between the reconstructed jet recoil and the
  Z boson. The measurements are compared with predictions from four different calculations. The first two
  merge matrix elements with different parton multiplicities in the final state and parton showering, one
  of which includes one-loop corrections. The third is a fixed-order calculation with next-to-next-to-leading
  order accuracy for the process with a Z boson and one parton in the final state. The fourth combines the
  fully differential next-to-next-to-leading order calculation with next-to-next-to-leading logarithm
  resummation and parton showering.'
Cuts: 'First two leading electrons or muons with $p_T > 20$ GeV and $|\eta| < 2.4$
     Dilepton invariant mass in the [71,111] GeV range
     Jets $p_T > 30$ GeV and $|\eta| < 2.4$
     $\Delta{R}($lepton,jet$) > 0.4$'
BibKey: Sirunyan:2018cpw
BibTeX: '@article{Sirunyan:2018cpw,
      author         = "Sirunyan, Albert M and others",
      title          = "{Measurement of differential cross sections for Z boson
                        production in association with jets in proton-proton
                        collisions at $\sqrt{s}=$ 13$\,$TeV}",
      collaboration  = "CMS",
      year           = "2018",
      eprint         = "1804.05252",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ex",
      reportNumber   = "CMS-SMP-16-015, CERN-EP-2018-071",
      SLACcitation   = "%%CITATION = ARXIV:1804.05252;%%"
}'
ReleaseTests:
 - $A LHC-13-Z-e
 - $A-2 LHC-13-Z-el-jets
 - $A-3 LHC-13-Z-mu-jets
 - $A-4 LHC-13-Z-mu
