Measurement of the $t\bar{t}\gamma$ production cross section in proton-proton collisions at $\sqrt{s} = 8$ TeV with the ATLAS detector

CERN-LHC-ATLAS. Measurements of the cross section for $t\bar{t}\gamma$ production using the single lepton (e or mu) channel in proton-proton collisions at a centre-of-mass energy of 8 TeV with 20.2 fb^-1 of data collected in 2012.

The fiducial region is defined as: - 1 electron or muon, 1 photon, at least 4 jets, at least 1 b-jet - ptLepton > 25 GeV, |etaLepton| < 2.5 - ptPhoton > 15 GeV, |etaPhoton| < 2.37 - ptJet > 25 GeV, |etaJet| < 2.5 - min(DeltaR(lepton,photon)) > 0.7 - min(DeltaR(jet,photon)) > 0.5

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Imported on November 17, 2025
Last update November 17, 2025
Keywords
  • cmenergies: 8000.0-8000.0
  • observables: DSIG/DETA
  • observables: DSIG/DPT
  • observables: SIG
  • Photon Transverse Momentum Dependence
  • Top pair plus photon production
  • Cross Section
  • Inclusive
  • Top Production
  • Photon Pseudorapidity Dependence
  • Single Differential Cross Section
  • Proton-Proton Scattering
  • Integrated Cross Section
  • Top pair Production
  • P P --> e/mu nu_e/nu_mu q1 q2 b bbar gamma X
Defined In https://doi.org/10.1007/JHEP11(2017)086
Author Morad Aaboud
More Authors
Georges Aad
Brad Abbott
Ovsat Abdinov
Baptiste Abeloos
Syed Haider Abidi
Ossama AbouZeid
Nicola Abraham
Halina Abramowicz
Henso Abreu
Repository Name INSPIRE-HEP
Source Creation February 17, 2025
Source Modified March 26, 2025
Language Deutsch
Publication Year 2019-01-18