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ATLAS Publication Drafts Final

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2024-05-08
16:28
Underlying-event studies with strange hadrons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Properties of the underlying-event in $pp$ interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda$ and $\bar\Lambda$, as reconstructed using the ATLAS detector at the LHC in minimum-bias $pp$ collision data at $\sqrt{s} = 13$ TeV. [...]
CERN-EP-2024-105. - 2024.
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2024-05-08
11:49
ATLAS searches for additional scalars and exotic Higgs boson decays with the LHC Run 2 dataset
This report reviews the published results of searches for possible additional scalar particles and exotic decays of the Higgs boson performed by the ATLAS Collaboration using up to 140 fb$^{-1}$ of 13 TeV proton-proton collision data collected during Run 2 of the Large Hadron Collider. [...]
CERN-EP-2024-094. - 2024.
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2024-05-08
11:16
Observation of $t\bar{t}$ production in the lepton+jets and dilepton channels in $p$+Pb collisions at $\sqrt{s_\mathrm{NN}}=8.16$ TeV with the ATLAS detector
This paper reports the observation of top-quark pair production in proton-lead collisions in the ATLAS experiment at the Large Hadron Collider. [...]
CERN-EP-2024-097. - 2024.
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2024-05-07
09:41
Calibration of a soft secondary vertex tagger using proton-proton collisions at $\sqrt{s}=$13 TeV with the ATLAS detector / ATLAS Collaboration
Several processes studied by the ATLAS experiment at the Large Hadron Collider produce low-momentum $b$-flavored hadrons in the final state. [...]
arXiv:2405.03253 ; CERN-EP-2024-108. - 2024. - 42 p, 42 p.
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2024-05-02
12:26
Beam-induced backgrounds measured in the ATLAS detector during local gas injection into the LHC beam vacuum
Inelastic beam-gas collisions at the Large Hadron Collider (LHC), within a few hundred metres of the ATLAS experiment, are known to give the dominant contribution to beam backgrounds [...]
CERN-EP-2024-113. - 2024.
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2024-04-30
08:07
Search for heavy neutral Higgs bosons decaying into a top quark pair in 140 fb$^{-1}$ of proton–proton collision data at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for heavy pseudo-scalar ($A$) and scalar ($H$) Higgs bosons decaying into a top-quark pair ($t\bar{t}$) has been performed with 140 fb$^{-1}$ of proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=13$ TeV. [...]
arXiv:2404.18986 ; CERN-EP-2024-090. - 2024. - 71 p.
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2024-04-29
09:48
Search for pair production of boosted Higgs bosons via vector-boson fusion in the $b\bar{b}b\bar{b}$ final state using $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for Higgs boson pair production via vector-boson fusion is performed in the Lorentz-boosted regime, where a Higgs boson candidate is reconstructed as a single large-radius jet, using 140 fb$^{-1}$ of proton-proton collision data at $\sqrt{s} = 13$ TeV recorded by the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2404.17193 ; CERN-EP-2024-092. - 2024. - 42 p.
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2024-04-25
08:55
Constraints on dark matter models involving an $s$-channel mediator with the ATLAS detector in $pp$ collisions at $\sqrt{s} = 13$ TeV / ATLAS Collaboration
This paper reports a summary of searches for a fermionic dark matter candidate in the context of theoretical models characterised by a mediator particle exchange in the $s$-channel. [...]
arXiv:2404.15930 ; CERN-EP-2024-102. - 2024. - 55 p.
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2024-04-22
08:32
Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton-proton collisions at a center of mass energy of 13 TeV with the ATLAS detector / ATLAS Collaboration
A search for the resonant production of a heavy scalar $X$ decaying into a Higgs boson and a new lighter scalar $S$, through the process $X \to S(\to bb) H(\to \gamma\gamma)$, where the two photons are consistent with the Higgs boson decay, is performed. [...]
arXiv:2404.12915 ; CERN-EP-2024-072. - 2024. - 45 p.
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2024-04-22
08:24
Search for the non-resonant production of Higgs boson pairs via gluon fusion and vector-boson fusion in the $b\bar{b}\tau^+\tau^-$ final state in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
A search for the non-resonant production of Higgs boson pairs in the $HH\rightarrow b\bar{b}\tau^+\tau^-$ channel is performed using 140 fb$^{-1}$ of proton-proton collisions at a centre-of-mass energy of $13$ TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. [...]
arXiv:2404.12660 ; CERN-EP-2024-091. - 2024. - 50 p.
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