ATLAS Conference Notes

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2025-04-01
14:15

Measurements and interpretation of the Higgs boson differential and production mode cross sections in the $H \rightarrow ZZ^* \rightarrow 4\ell$ channel at $\sqrt{s}=13.6$ TeV with the ATLAS detector
Higgs boson production cross-sections are measured in the

$H\rightarrow~ZZ^\ast\rightarrow~4\ell$ decay channel based on 56 fb

$^{-1}$ of proton-proton collision data produced at the Large Hadron Collider at a centre-of-mass energy of 13.6 TeV and recorded by the ATLAS detector in 2022 and 2023. [...]
ATLAS-CONF-2025-002. - 2025 - 47.
Original Communication (restricted to ATLAS) - Full text

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2025-04-01
08:31

Measurements of $Z\gamma$ differential cross sections and search for neutral triple gauge couplings in $pp$ collisions at $\sqrt{s} =$ 13 TeV with the ATLAS detector
The measurements of the cross sections for

$Z\gamma$ production and the search for neutral triple gauge couplings (nTGC) through

$ZZ\gamma$ or

$\gamma^* Z\gamma$ vertices are presented, using the full Run2 proton-proton dataset of 140 fb

$^{-1}$ produced by the LHC at

$\sqrt{s}$ = 13 TeV and collected by the ATLAS detector. [...]
ATLAS-CONF-2025-001. - 2025 - mult..
Original Communication (restricted to ATLAS) - Full text

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2024-11-04
09:58

Measurement of off-shell Higgs boson production in the $H^*\rightarrow ZZ\rightarrow 4\ell$ decay channel using a neural simulation-based inference technique with the ATLAS detector at $\sqrt{s}=13$ ~TeV
A measurement of off-shell Higgs boson production in the

$H^*\to ZZ\to 4\ell$ decay channel is presented. [...]
ATLAS-CONF-2024-016. - 2024 - mult..
Original Communication (restricted to ATLAS) - Full text

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2024-10-28
17:46

An implementation of Neural Simulation-Based Inference for Parameter Estimation in ATLAS
Neural Simulation-Based Inference (NSBI) is a powerful class of machine learning (ML)-based methods for statistical inference that naturally handles high-dimensional parameter estimation without the need to bin data into low-dimensional summary histograms. [...]
ATLAS-CONF-2024-015. - 2024 - mult..
Original Communication (restricted to ATLAS) - Full text

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2024-09-30
13:16

A Continuous Calibration of the ATLAS Flavor-Tagging Classifiers via Optimal Transportation Maps
A calibration of the ATLAS flavor-tagging algorithms using a new calibration procedure based on optimal transportation maps is presented. [...]
ATLAS-CONF-2024-014. - 2024.
Original Communication (restricted to ATLAS) - Full text

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2024-09-22
15:23

Characterization of nuclear break-up as a function of hard-scattering kinematics using dijets in $p$ +Pb collisions at $\sqrt{S_\mathrm{NN}}$ =8.16 TeV with the ATLAS detector
This note presents the first study of the sensitivity of event geometry estimators to the initial state kinematics of the hard scattering in proton-lead collisions. [...]
ATLAS-CONF-2024-013. - 2024 - mult..
Original Communication (restricted to ATLAS) - Full text

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2024-07-30
17:01

Measurement of Track Functions in ATLAS Run 2 Data
Measurements of jet substructure are key to probing the energy frontier at colliders, and many of them use track-based observables which take advantage of the angular precision of tracking detectors. [...]
ATLAS-CONF-2024-012. - 2024 - mult..
Original Communication (restricted to ATLAS) - Full text

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2024-07-23
14:16

Search for displaced leptons in 13 TeV and 13.6 TeV $pp$ collisions with the ATLAS detector
A search for leptons, displaced from the primary interaction vertex, including data collected at a center-of-mass energy of 13.6~TeV by the ATLAS experiment during Run~3 of the Large Hadron Collider is presented. [...]
ATLAS-CONF-2024-011. - 2024. - 26 p.
Original Communication (restricted to ATLAS) - Full text

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2024-07-23
10:06

Measurements of W H and Z H Higgs production with decays into bottom quarks and direct constraints on the charm Yukawa coupling with 13 TeV collisions in the ATLAS detector.
A study of the Higgs boson decaying into bottom quarks (

$H \to b\bar{b}$ ) and charm quarks (

$H \to c\bar{c}$ ) is performed, in the associated production channel of the Higgs boson with a

$W$ or

$Z$ boson, using

$140\,\mathrm{fb}^{-1}$ of proton-proton collision data at

$\sqrt{s} = 13\,\mathrm{TeV}$ collected by the ATLAS detector. [...]
ATLAS-CONF-2024-010. - 2024.
Original Communication (restricted to ATLAS) - Full text

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2024-07-20
14:35

Search for magnetic monopole pair production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{\textrm{NN}}}=5.36$ TeV with the ATLAS detector at the LHC
A search for low-mass magnetic monopoles is presented using 0.262 nb

$^{-1}$ of Run 3 Pb+Pb collision data at

$\sqrt{s_{\textrm{NN}}}=5.36$ TeV collected by the ATLAS detector at the LHC. [...]
ATLAS-CONF-2024-009. - 2024.
Original Communication (restricted to ATLAS) - Full text

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