Name: OPAL_2004_I648738
Year: 2004
Summary: Quark and gluon jet fragmentation functions
Experiment: OPAL
Collider: LEP
InspireID: 648738
Status: VALIDATED
Authors:
 - Daniel Reichelt <d.reichelt@cern.ch>
References:
 - Eur.Phys.J. C37 (2004) no.1, 25-47
 - hep-ex/0404026
RunInfo:
  For quark fragmentation $e^+e^-\to q\bar{q}$ events are required, while for gluon fragmentation
  the fictional $e^+e^-\to gg$ process is required.
NumEvents: 1000000
NeedCrossSection: no
Beams: [e+, e-]
Energies: [12.8,26.8,48.0,91.2,93.0,97.0,197.0]
NeedCrossSection: False
Description:
  Measurement of the fragmentation functions for quarks and gluons at LEP. Useful for studying the properties
  of gluon jets and the differences between quark and gluon jets. For the study of gluon jets the fictional
  $e^+e^-\to g g $ process must be used. The data in histograms labelled "hemisphere fragmentation" are measured
  from jets defined by hemispheres, with an energy scale defined by $E=\sqrt{s}/2$,
  while data in histograms named "durham fragmentation" are measured from jets defined by the durham algorithm
  with $Q_\mathrm{jet}=E_\mathrm{jet}\sin(\theta/2)$ as the energy scale. The rivet analysis defines the jet
  flavour from the initial quarks, as the data are corrected for impurities, and defines all jets as
  hemispheres with energy scale $E=\sqrt{s}/2$.
BibKey: Abbiendi:2004pr
BibTeX: '@article{Abbiendi:2004pr,
      author         = "Abbiendi, G. and others",
      title          = "{Scaling violations of quark and gluon jet fragmentation
                        functions in e+ e- annihilations at s**(1/2) = 91.2-GeV
                        and 183-GeV to 209-GeV}",
      collaboration  = "OPAL",
      journal        = "Eur. Phys. J.",
      volume         = "C37",
      year           = "2004",
      number         = "1",
      pages          = "25-47",
      doi            = "10.1140/epjc/s2004-01964-4",
      eprint         = "hep-ex/0404026",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ex",
      reportNumber   = "CERN-PH-EP-2004-011",
      SLACcitation   = "%%CITATION = HEP-EX/0404026;%%"
}'

ReleaseTests:
 - $A LEP-12.8-gg
 - $A-2 LEP-12.8
 - $A-3 LEP-197
 - $A-4 LEP-26.8-gg
 - $A-5 LEP-26.8
 - $A-6 LEP-48.0-gg
 - $A-7 LEP-48.0
 - $A-8 LEP-91
 - $A-9 LEP-93.0
 - $A-10 LEP-97.0-gg

