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ATLAS Notes

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2025-06-28
12:46
Recent highlights of top-quark cross section and mass measurements at the LHC with ATLAS and CMS / Gocke, Benedikt (Technische Universitaet Dortmund (DE))
The large dataset collected with the ATLAS and CMS detectors at the highest proton-proton collision energies provided by the LHC enables precision testing of theoretical predictions using an extensive sample of top-quark events. [...]
ATL-PHYS-PROC-2025-042. - 2025 - 7.
Original Communication (restricted to ATLAS) - Full text

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2025-06-27
16:26
Vector-like quark summary plot
This note presents a plot summarising latest ATLAS $95\%$ confidence level exclusion lower limits on the vector-like quark mass for various assumptions on the decay modes. [...]
ATL-PHYS-PUB-2025-030. - 2025 - mult..
Original Communication (restricted to ATLAS) - Full text

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2025-06-25
11:42
Explaining the ATLAS GN2 Flavour Tagging Algorithm with Integrated Gradients
Flavour tagging is crucial for many physics analyses at the Large Hadron Collider, enabling the identification of jets originating from heavy-flavour quarks. [...]
ATL-PHYS-PUB-2025-029. - 2025 - mult..
Original Communication (restricted to ATLAS) - Full text

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2025-06-13
11:53
Top EFT Summary Plots May 2025
This note presents figures that summarise the limits on effective field theory (EFT) operators derived from measurements of the ATLAS top working group and LHC Top working group (ATLAS+CMS). [...]
ATL-PHYS-PUB-2025-028. - 2025 - 42.
Original Communication (restricted to ATLAS) - Full text

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2025-06-07
07:34
Evaluating the statistical uncertainties and statistical consistency of constraints for the jet $\eta$-intercalibration in ATLAS
The $\eta$-intercalibration in situ method is one of the key steps of the ATLAS jet energy calibration procedure, aimed to ensure homogeneity of the energy response across the different detector subsystems. [...]
ATL-PHYS-PUB-2025-027. - 2025 - 12.
Original Communication (restricted to ATLAS) - Full text

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2025-06-02
13:32
Top quark properties and mass / Fabbri, Federica (Universita e INFN, Bologna (IT))
This contribution presents the latest results on top-quark property measurements using proton-proton collision data collected by the ATLAS and CMS collaborations. [...]
ATL-PHYS-PROC-2025-041. - 2025 - 6.
Original Communication (restricted to ATLAS) - Full text

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2025-06-02
13:21
A New Heart for ATLAS: Status of the New Phase-2 ATLAS ITk Pixel Detector / Vormwald, Benedikt (CERN)
The upgrade of the LHC to the High Luminosity LHC (HL-LHC) by the end of this decade will impose significant challenges on the detectors of the LHC experiments. [...]
ATL-ITK-PROC-2025-018. - 2025 - 4.
Original Communication (restricted to ATLAS) - Full text

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2025-05-28
10:41
Identification of Boosted Higgs Bosons decaying into a pair of collimated $\tau$-leptons decaying hadronically with Transformer Neural Networks in ATLAS
This work presents a novel approach to identify boosted Higgs bosons decaying into a pair of collimated $\tau$-leptons decaying hadronically by extending the GN2X algorithm, which employs a transformer neural network architecture with low-level input variables and was originally developped to identify boosted Higgs bosons decaying hadronically into a pair of b-quarks or c-quarks. [...]
ATL-PHYS-PUB-2025-026. - 2025 - 17.
Original Communication (restricted to ATLAS) - Full text

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2025-05-26
15:27
Long-Lived and Dark Matter Searches at ATLAS and CMS / Alpigiani, Cristiano (University of Washington (US))
Many theories beyond the Standard Model (BSM) have been proposed to address several of the Standard Model shortcomings, such as the origin of dark matter and neutrino masses, the fine-tuning of the Higgs Boson mass, or the observed pattern of masses and mixing angles in the quark and lepton sectors. [...]
ATL-PHYS-PROC-2025-040. - 2025 - 5.
Original Communication (restricted to ATLAS) - Full text

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2025-05-23
09:44
Hard probes in heavy-ion collisions at ATLAS and CMS / Maj, Klaudia (AGH University of Krakow (PL))
Hard probes, including high-energy jets, heavy quarks, and photons, are essential tools for studying the hot and dense quark-gluon matter created in ultra-relativistic heavy-ion collisions. [...]
ATL-PHYS-PROC-2025-039. - 2025 - 4.
Original Communication (restricted to ATLAS) - Full text

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ATLAS Conference Contributions (5,842)
ATLAS PUB Notes (3,072)
ATLAS Conference Notes (1,271)