Name: D0_2008_I782968
Year: 2008
Summary: Isolated $\gamma$ + jet cross-sections, differential in pT($\gamma$) for various $y$ bins
Experiment: D0
Collider: Tevatron Run 2
SpiresID: 7719523
InspireID: 782968
Status: VALIDATED
Reentrant: true
Authors:
 - Andy Buckley <andy.buckley@cern.ch>
 - Gavin Hesketh <gavin.hesketh@cern.ch>
 - Frank Siegert <frank.siegert@cern.ch>
References:
 - Phys.Lett.B666:435-445,2008
 - doi:10.1016/j.physletb.2008.06.076
 - arXiv:0804.1107 [hep-ex]
RunInfo:
  "Produce only gamma + jet ($q,\\bar{q},g$) hard processes (for Pythia 6, this means MSEL=10
  and MSUB indices 14, 29 & 115 enabled). The lowest bin edge is at 30 GeV, so a kinematic
  pTmin cut is probably required to fill the histograms."
NumEvents: 1000000
Beams: [p-, p+]
Energies: [1960]
PtCuts: [20]
Description:
  The process $p \bar{p}$ -> photon + jet + X as studied by the D0 detector
  at the Fermilab Tevatron collider at center-of-mass energy $\sqrt{s} = 1.96~\TeV$.
  Photons are reconstructed in the central rapidity region
  $|y_\gamma| < 1.0$ with transverse momenta in the range 30--400~GeV,
  while jets are reconstructed in either the central $|y_\text{jet}| < 0.8$ or
  forward $1.5 < |y_\text{jet}| < 2.5$ rapidity intervals with
  $\pT^\text{jet} > 15~\GeV$. The differential cross section
  $\mathrm{d}^3 \sigma / \mathrm{d}{\pT^\gamma} \mathrm{d}{y_\gamma}
  \mathrm{d}{y_\text{jet}}$ is measured as a function of $\pT^\gamma$ in four
  regions, differing by the relative orientations of the photon and the
  jet.  MC predictions have trouble with simultaneously describing the
  measured normalization and $\pT^\gamma$ dependence of the cross section
  in any of the four measured regions.
NeedCrossSection: yes
BibKey: Abazov:2008er
BibTeX: '@Article{Abazov:2008er,
     author    = "Abazov, V. M. and others",
     collaboration = "D0",
     title     = "{Measurement of the differential cross-section for the production of an isolated photon with associated jet in $p \bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV}",
     journal   = "Phys. Lett.",
     volume    = "B666",
     year      = "2008",
     pages     = "435-445",
     eprint    = "0804.1107",
     archivePrefix = "arXiv",
     primaryClass  =  "hep-ex",
     doi       = "10.1016/j.physletb.2008.06.076",
     SLACcitation  = "%%CITATION = 0804.1107;%%"
}'

ReleaseTests:
 - $A TVT-Run-II-PromptPhoton

