Name: ATLAS_2024_I2809112
Year: 2024
Summary: ttbb production at 13 TeV
Experiment: ATLAS
Collider: LHC
InspireID: 2809112
Status: VALIDATED
Reentrant: true
Authors:
 - Mahsana Haleem <Mahsana.Ahsan@cern.ch>
References:
 - ATLAS-STDM-2019-03
 - arXiv:2407.13473 [hep-ex]
RunInfo: pp ->  ttbb in the e-mu channel
Beams: [p+, p+]
Energies: [[6500,6500]]
Luminosity_fb: 140
Description:
  'This paper presents measurements of top-antitop quark pair ($t\bar{t}) production in association with additional $b$-jets. The analysis
  utilises 140 fbi${}^{-1}$ of proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider at a
  centre-of-mass energy of 13 TeV. Fiducial cross-sections are extracted in a final state featuring one electron and one muon, with
  at least three or four $b$-jets. Results are presented at the particle level for both integrated cross-sections and normalised
  differential cross-sections, as functions of global event properties, jet kinematics, and $b$-jet pair properties. Observable
  quantities characterising $b$-jets originating from the top quark decay and additional b-jets are also measured at the particle
  level, after correcting for detector effects. The measured integrated fiducial cross-sections are consistent with
  $t\bar{t}b\bar{b}$ predictions from various next-to-leading-order matrix element calculations matched to a parton shower within
  the uncertainties ofthe predictions. State-of-the-art theoretical predictions are compared with the differential measurements;
  none of them simultaneously describes all observables. Differences between any two predictions are smaller than the measurement
  uncertainties for most observables.'
Keywords:
 - TTBAR
 - TTBB
BibKey: ATLAS:2024aht
BibTeX: '@article{ATLAS:2024aht,
    author = "Aad, Georges and others",
    collaboration = "ATLAS",
    title = "{Measurement of $t\bar{t}$ production in association with additional $b$-jets in the $e\mu$ final state in proton-proton collisions at $\sqrt{s}$=13 TeV with the ATLAS detector}",
    eprint = "2407.13473",
    archivePrefix = "arXiv",
    primaryClass = "hep-ex",
    reportNumber = "CERN-EP-2024-191",
    month = "7",
    year = "2024"
}'
ReleaseTests:
 - $A pp-13000-ttbb
