Name: ATLAS_2022_I2037744
Year: 2022
Summary: Semileptonic ttbar with high pT top at 13 TeV, single- and double-differential cross-sections
Experiment: ATLAS
Collider: LHC
InspireID: 2037744
Status: VALIDATED
Reentrant: true
Authors:
 - Jonathan Jamieson <jonathan.jamieson@cern.ch>
 - Mark Owen <mark.andrew.owen@cern.ch>
References:
 - JHEP 06 (2022) 063
 - arXiv:2202.12134 [hep-ex]
 - ATLAS-TOPQ-2019-23
Keywords:
 - Semileptonic ttbar
 - Boosted
 - Differential cross-section measurement
 - EFT limits
RunInfo:
  pp -> non-allhadronic ttbar production at 13 TeV
Luminosity_fb: 139
Beams: [p+, p+]
Energies: [13000]
PtCuts: [0]
Description:
'Cross-section measurements of top-quark pair production where the hadronically decaying top quark has transverse momentum
greater than $355$ GeV and the other top quark decays into $\ell \nu b$ are presented using 139 fb$^{-1}$ of data
collected by the ATLAS experiment during proton--proton collisions at the LHC. The fiducial cross-section at $\sqrt{s}=13$ TeV
is measured to be $\sigma = 1.267 \pm 0.005 \pm 0.053$ pb, where the uncertainties reflect the limited number of data events
and the systematic uncertainties, giving a total uncertainty of $4.2\%$. The cross-section is measured differentially as a
function of variables characterising the $t\bar{t}$ system and additional radiation in the events. The results are compared
with various Monte Carlo generators, including comparisons where the generators are reweighted to match a parton-level
calculation at next-to-next-to-leading order. The reweighting improves the agreement between data and theory. The measured
distribution of the top-quark transverse momentum is used to search for new physics in the context of the effective field
theory framework. No significant deviation from the Standard Model is observed and limits are set on the Wilson coefficients
of the dimension-six operators $O_{tG}$ and $O_{tq}^{(8)}$, where the limits on the latter are the most stringent to date.'
BibKey: ATLAS:2022xfj
BibTeX: '@article{ATLAS:2022xfj,
    author = "Aad, Georges and others",
    collaboration = "ATLAS",
    title = "{Measurements of differential cross-sections in top-quark pair events with a high
             transverse momentum top quark and limits on beyond the Standard Model contributions
             to top-quark pair production with the ATLAS detector at $ \sqrt{s} $ = 13 TeV}",
    eprint = "2202.12134",
    archivePrefix = "arXiv",
    primaryClass = "hep-ex",
    reportNumber = "CERN-EP-2022-003",
    doi = "10.1007/JHEP06(2022)063",
    journal = "JHEP",
    volume = "06",
    pages = "063",
    year = "2022"
}'
ReleaseTests:
 - $A pp-13000-ttbar-sl-boosted
