Name: OPAL_2001_S4553896
Year: 2001
Summary: Four-jet angles using Durham algorithm
Experiment: OPAL
Collider: LEP Run 1
SpiresID: 4553896
InspireID: 552446
Status: VALIDATED
Authors:
 - Frank Siegert <frank.siegert@cern.ch>
References:
 - Eur.Phys.J.C20:601-615,2001
 - doi:10.1007/s100520100699
 - arXiv:hep-ex/0101044
RunInfo:
  Hadronic Z decay events generated on the Z pole ($\sqrt{s} = 91.2$ GeV)
  Hadronisation should be turned off because the data is corrected back to the
  parton level.
NumEvents: 10000000
Beams: [e+, e-]
Energies: [91.2]
PtCuts: [0]
Description:
  'Angles between the leading (in energy) four jets defined using the Durham
  algorithm with $y_\mathrm{cut}=0.008$. The data is presented at the parton
  level and includes the Bengtsson-Zerwas, Korner-Schierholz-Willrodt and
  Nachtmann-Reiter angles as well as the angle between the two softest jets.'
BibKey: Abbiendi:2001qn
BibTeX: '@Article{Abbiendi:2001qn,
     author    = "Abbiendi, G. and others",
 collaboration = "OPAL",
     title     = "{A simultaneous measurement of the QCD colour factors and
                  the strong  coupling}",
     journal   = "Eur. Phys. J.",
     volume    = "C20",
     year      = "2001",
     pages     = "601-615",
     eprint    = "hep-ex/0101044",
     archivePrefix = "arXiv",
     doi       = "10.1007/s100520100699",
     SLACcitation  = "%%CITATION = HEP-EX/0101044;%%"
}'
ToDo:
 - Add y23 and R4(ycut) histograms
 - Get data from HepData when available (so far just read off the plots)

ReleaseTests:
 - $A LEP-91

