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ATLAS Preprints

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2023-12-06
16:41
Measurement of jet substructure in boosted $t\bar{t}$ events with the ATLAS detector using 140 fb$^{-1}$ of 13 TeV $pp$ collisions
Measurements of the substructure of top-quark jets are presented, using 140 fb$^{-1}$ of 13 TeV $pp$ collision data recorded with the ATLAS detector at the LHC. [...]
CERN-EP-2023-239. - 2023.
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2023-12-06
10:06
Search for short- and long-lived axion-like particles in $H\rightarrow a a \rightarrow 4\gamma$ decays with the ATLAS experiment at the LHC
Presented is the search for anomalous Higgs boson decays into two axion-like particles (ALPs) using the full Run 2 data set of 140 fb$^{-1}$ of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS experiment. [...]
CERN-EP-2023-202. - 2023.
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2023-12-06
09:25
Measurement of the Z boson invisible width at $\sqrt{s}=13$ TeV with the ATLAS detector
A measurement of the invisible width of the $Z$ boson using events with jets and missing transverse momentum is presented using 37 $\mbox{fb\(^{-1}\)}$ of 13 TeV proton-proton data collected by the ATLAS detector in 2015 and 2016. [...]
CERN-EP-2023-232. - 2023.
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2023-12-05
11:38
Evidence for the $VH, H\rightarrow \tau\tau$ process with the ATLAS detector in Run 2
A search for the Standard Model Higgs boson produced in association with a $W$ or $Z$ boson and decaying into a pair of $\tau$-leptons is presented. [...]
CERN-EP-2023-272. - 2023.
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2023-12-04
19:18
Search for the decay of the Higgs boson to a $Z$ boson and a light pseudoscalar particle decaying to two photons / ATLAS Collaboration
A search for the decay of the Higgs boson to a $Z$ boson and a light, pseudoscalar particle, $a$, decaying respectively to two leptons and to two photons is reported. [...]
arXiv:2312.01942 ; CERN-EP-2023-167. - 2023. - 38 p, 38 p.
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2023-12-04
11:52
ttbar differential and inclusive measurements / Walter, David (CERN) /ATLAS and CMS Collaborations
This report summarizes recent results of inclusive and differential tt cross section measurements from the ATLAS and CMS Collaborations at the LHC. Measurements at sqrt(s) = 7, 8, 13, and 13.6 TeV are compared to state-of-the-art theory predictions, using different PDF sets, matrix element calculations, or parton shower models. [...]
CMS-CR-2023-292.- Geneva : CERN, 2023 - 7 p. Fulltext: PDF;
In : 16th International Workshop on Top Quark Physics, Traverse City, Michigan, Us, 24 - 29 Sep 2023

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2023-12-01
13:25
Measurement and interpretation of same-sign $W$ boson pair production in association with two jets in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration
This paper presents the measurement of fiducial and differential cross sections for both the inclusive and electroweak production of a same-sign $W$-boson pair in association with two jets ($W^\pm W^\pm jj$) using 139 fb$^{-1}$ of proton-proton collision data recorded at a centre-of-mass energy of $\sqrt{s}=13$ TeV by the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2312.00420 ; CERN-EP-2023-221. - 2023. - 57 p.
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2023-11-30
10:54
Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A search is reported for long-lived dark photons with masses between 0.1 GeV and 15 GeV, from exotic decays of Higgs bosons produced via vector-boson-fusion. [...]
arXiv:2311.18298 ; CERN-EP-2023-226. - 2023. - 45 p.
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2023-11-28
11:28
Combination of searches for resonant Higgs boson pair production using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
A combination of searches for resonant Higgs boson pair production is presented, using up to 139 fb$^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV recorded with the ATLAS detector at the LHC. [...]
arXiv:2311.15956 ; CERN-EP-2023-271. - 2023. - 31 p.
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2023-11-27
17:28
Measurement of the ttbar cross-section and ttbarZ cross-section ratio in pp collisions at a centre-of-mass energy of 13.6 TeV with the ATLAS and CMS experiments / Ranken, Evan Altair (DESY) /ATLAS and CMS Collaborations
Recent measurements of the inclusive ttbar production cross section, sigma_ttbar, and the ratio of ttbar to Z boson production, R_ttbar/Z, are presented by the CMS and ATLAS collaboration using data collected from proton-proton collisions at the new LHC operating energy of sqrt(s)=13.6 TeV. These are among the first results of the ongoing LHC Run 3 data-taking period, which began in 2022, and provide a first opportunity to measure changes in key physics observables following the increase in energy. [...]
CMS-CR-2023-269.- Geneva : CERN, 2023 - 10 p. Fulltext: PDF;
In : 2023 European Physical Society Conference on High Energy Physics (EPS-HEP2023), Hamburg, Germany, 20 - 25 Aug 2023

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