Name: LHCB_2012_I1208102
Year: 2012
Summary: Differential cross-sections of $\mathrm{Z}/\gamma^* \to e^{+}e^{-}$ vs rapidity and $\phi^*$
Experiment: LHCb
Collider: LHC
InspireID: 1208102
Status: VALIDATED
Authors:
 - Ana Elena Dumitriu <ana.elena.dumitriu@cern.ch>
 - Marek Sirendi <Marek.Sirendi@cern.ch>
 - David Ward <david.ward@cern.ch>
 - Alex Grecu <alexandru.grecu@nipne.ro>
References:
 - J. High Energy Phys. 02 (2013) 106
 - doi:10.1007/JHEP02(2013)106
 - arXiv:1212.4620 [hep-ex]
RunInfo:  $\mathrm{Z}/\gamma^* \to e^{+}e^{-}_$ decays with di-lepton invariant mass $> 40$ GeV/$c^2$ produced in $pp$ collisions at $\sqrt{s}=7$ TeV.
NumEvents: 500000
NeedCrossSection: yes
Beams: [p+, p+]
Energies: [7000]
Luminosity_fb: 0.94
PtCuts: [20.]
Description:
  'Measurement of the $pp \to \mathrm{Z}^0$ cross-section in the $\mathrm{Z}/\gamma \to e^{+}e^{-}$ mode at
   $\sqrt{s} = 7$ TeV. Daughter electrons are required to have $p_T > 20$ GeV/$c$, $2 < \eta < 4.5$ and the
   dielectron invariant mass in range 60-120 GeV/$c^2$. The cross-section is given as a function of $Z$ rapidity
   and an angular variable ($\phi^*$) closely related to $Z$ transverse momentum (derived from the lepton
   pseudorapidity and azimuthal angle differences). For event generators implementing cross-section QCD
   corrections only at LO the distributions are normalized to the cross-section measured in data $76.0
   \pm 0.8 \pm 2.0 \pm 2.6 \pm 0.4$ pb, where the first uncertainty is statistical, the second is systematic,
   the third is due to luminosity uncertainty and the fourth to FSR corrections.'
BibKey: Aaij:2012mda
BibTeX: '@article{Aaij:2012mda,
      author         = "Aaij, R and others",
      title          = "{Measurement of the cross-section for $Z \to e^+e^-$
                        production in $pp$ collisions at $\sqrt{s}=7$ TeV}",
      collaboration  = "LHCb collaboration",
      journal        = "JHEP",
      volume         = "1302",
      pages          = "106",
      doi            = "10.1007/JHEP02(2013)106",
      year           = "2013",
      eprint         = "1212.4620",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ex",
      reportNumber   = "CERN-PH-EP-2012-363, LHCB-PAPER-2012-036",
      SLACcitation   = "%%CITATION = ARXIV:1212.4620;%%",
}'

ReleaseTests:
 - $A LHC-Z-MedMass-e

