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@ARTICLE{Aad:589409,
author = {Aad, Georges and others},
collaboration = {{ATLAS Collaboration}},
title = {{S}earch for top-philic heavy resonances in $pp$ collisions
at $\sqrt{s}=13$ {T}e{V} with the {ATLAS} detector},
reportid = {PUBDB-2023-05165, arXiv:2304.01678. CERN-EP-2023-048},
year = {2023},
note = {47 pages in total, author list starting page 30, 9 figures,
1 table, submitted to EPJC. All figures including auxiliary
figures will be available at
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2022-14/},
abstract = {A search for associated production of a heavy $Z'$ boson
with a top-quark or a top-antitop-quark pair, and decaying
into a $t\bar{t}$ pair is presented. The search uses the
data recorded by the ATLAS detector in $pp$ collisions at
$\sqrt{s}= 13$ TeV at the Large Hadron Collider during the
years 2015-2018, corresponding to an integrated luminosity
of 139 fb$^{-1}$. Events containing exactly one electron or
muon are selected. The two top quarks from the resonance
decay are reconstructed using jets clustered with a large
radius parameter of $R=1$. The invariant mass spectrum of
the two top quark candidates is used to search for a
resonance signal in the range of 1.0 TeV to 3.2 TeV. The
presence of a signal is examined using an approach with
minimal model dependence followed by a model-dependent
interpretation. No significant excess is observed over the
background expectation. Upper limits on the production cross
section times branching ratio at 95\% confidence level are
provided as a function of $Z^\prime$ mass between 1.0 TeV
and 3.0 TeV, based on a simplified $Z^\prime$ production
model. The observed (expected) limits range from 21 (14) fb
to 119 (86) fb depending on the choice of model parameters.},
keywords = {p p: scattering (INSPIRE) / p p: colliding beams (INSPIRE)
/ top: pair production (INSPIRE) / top: single production
(INSPIRE) / Z': associated production (INSPIRE) / resonance:
production (INSPIRE) / model: production (INSPIRE) /
resonance: decay (INSPIRE) / resonance: heavy (INSPIRE) /
model: minimal (INSPIRE) / ATLAS (INSPIRE) / final state:
((n)jet lepton) (INSPIRE) / muon (INSPIRE) / channel cross
section: branching ratio: upper limit (INSPIRE) / mass
dependence (INSPIRE) / Z': mass (INSPIRE) / electron
(INSPIRE) / mass spectrum: (2top) (INSPIRE) / CERN LHC Coll
(INSPIRE) / background (INSPIRE) / experimental results
(INSPIRE) / 13000 GeV-cms (INSPIRE)},
cin = {ATLAS},
cid = {I:(DE-H253)ATLAS-20120731},
pnm = {611 - Fundamental Particles and Forces (POF4-611)},
pid = {G:(DE-HGF)POF4-611},
experiment = {EXP:(DE-H253)LHC-Exp-ATLAS-20150101},
typ = {PUB:(DE-HGF)25},
eprint = {2304.01678},
howpublished = {arXiv:2304.01678},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2304.01678;\%\%$},
doi = {10.3204/PUBDB-2023-05165},
url = {https://bib-pubdb1.desy.de/record/589409},
}