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ATLAS Preprints

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2023-01-27
14:35
Search for flavor-changing neutral-current couplings between the top quark and the $Z$ boson with LHC Run 2 proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
A search for flavor-changing neutral-current couplings between a top quark, an up or charm quark and a $Z$ boson is presented, using proton-proton collision data at $\sqrt{s} = 13$ TeV collected by the ATLAS detector at the Large Hadron Collider [...]
CERN-EP-2022-044.
- 2023.
Fulltext - Previous draft version

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2023-01-27
11:16
Machine Learning in Top Physics in the ATLAS and CMS Collaborations / Keicher, Philip Daniel (Hamburg U.) /ATLAS and CMS Collaborations
Machine learning is essential in many aspects of top-quark related physics in the ATLAS and CMS Collaborations. This work aims to give a brief overview over current applications in the two collaborations as well as on-going studies for future applications.\footnote{Copyright 2023 CERN for the benefit of the ATLAS and CMS Collaborations. Reproduction of this article or parts of it is allowed as specified in the CC-BY-4.0 license}
CMS-CR-2023-006.- Geneva : CERN, 2023 - 9 p. Fulltext: PDF;
In : 15th International Workshop on Top-Quark Physics (TOP 2022), Durham, UK, 4 - 9 Sep 2022

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2023-01-26
10:58
Combination of searches for invisible decays of the Higgs boson using 139 fb$^{-1}$ of proton-proton collision data at $\sqrt{s} = 13$ TeV collected with the ATLAS experiment
Many extensions of the Standard Model predict the production of dark matter particles at the LHC. [...]
CERN-EP-2022-289.
- 2023.
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2023-01-26
09:09
Combination of searches for invisible decays of the Higgs boson using 139 fb$^{-1}$ of proton-proton collision data at $\sqrt{s} = 13$ TeV collected with the ATLAS experiment
Many extensions of the Standard Model predict the production of dark matter particles at the LHC. [...]
CERN-EP-2022-289 ; arXiv:2301.10731.
- 16 p.
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2023-01-26
09:08
Flow and transverse momentum correlation in Pb+Pb and Xe+Xe collisions with ATLAS: assessing the initial condition of the QGP / Bhatta, Somadutta (MIT, Cambridge, Dept. Phys. ; Bielefeld U.)
One important challenge in our field is to understand the initial condition of the QGP and constrain it using sensitive experimental observables. [...]
arXiv:2210.00159.
- 8 p.
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2023-01-26
08:19
Measurements of associated $\textrm{t}\overline{\textrm{t}}\textrm{X}$ / van der Linden, Jan (Karlsruhe U.)
Inclusive and differential cross section measurements of $\textrm{t}\overline{\textrm{t}}$-associated processes are performed at the ATLAS and CMS Collaborations with high precision. [...]
arXiv:2211.14161.
- 7 p.
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2023-01-26
08:13
ATLAS results on exotic hadronic resonances / Xu, Yue (Tsinghua U., Beijing ; Colombia, U. Natl.)
Recent results from the proton-proton collision data taken by the ATLAS experiment on exotic resonances are presented. [...]
arXiv:2209.12173.
- 6 p.
Fulltext

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2023-01-24
13:23
Search for exclusive Higgs and $Z$ boson decays to $\omega\gamma$ and Higgs boson decays to $K^{*}\gamma$ with the ATLAS detector
Searches for the exclusive decays of the Higgs boson to an $\omega$ meson and a photon or a $K^{*}$ meson and a photon can probe flavour-conserving and flavour-violating Higgs boson couplings to light quarks, respectively. [...]
CERN-EP-2022-288 ; arXiv:2301.09938.
- 2023. - 18 p.
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2023-01-24
11:43
Model-independent search for the presence of new physics in events including $H\rightarrow\gamma\gamma$ with $\sqrt{s}$ = 13 TeV pp data recorded by the ATLAS detector at the LHC
A model-independent search for new physics leading to final states containing $H\rightarrow\gamma\gamma$ decays is performed with 139 fb$^{-1}$ of $\sqrt{s}$ = 13 TeV pp collision data recorded by the ATLAS detector at the Large Hadron Collider at CERN. [...]
CERN-EP-2022-232 ; arXiv:2301.10486.
- 2023. - 30 p.
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2023-01-23
11:24
Search for a new Z' gauge boson in $4\mu$ events with the ATLAS experiment
This paper presents a search for a new Z' vector gauge boson with the ATLAS experiment at the Large Hadron Collider using pp collision data collected at $\sqrt{s} = 13$ TeV, corresponding to an integrated luminosity of 139 fb$^{-1}$. [...]
CERN-EP-2022-251 ; arXiv:2301.09342.
- 2023. - 25 p.
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