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ATLAS Notes

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2025-09-15
21:20
Search for long-lived charged particles using large specific ionisation and time-of-flight in 140 fb$^{-1}$ of pp collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector / Nechaeva, Serafima (Universita e INFN, Bologna (IT))
Many BSM models predict the existence of heavy charged new particles with lifetimes of 1 ns or longer. [...]
ATL-PHYS-PROC-2025-062. - 2025 - 6.
Original Communication (restricted to ATLAS) - Full text

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2025-09-15
21:14
Latest releases of ATLAS Open Data for Education and Research / Toffolin, Leonardo (Universita degli Studi di Udine (IT))
The ATLAS Collaboration has recently, for the first time, released a large volume of data for use in research publications, with its use being now extended via a new education-focused release. [...]
ATL-OREACH-PROC-2025-003. - 2025 - 7.
Original Communication (restricted to ATLAS) - Full text

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2025-09-15
13:49
Commissioning and evolution of the Run 3 ATLAS Trigger / Nobe, Takuya (University of Tokyo (JP))
The ATLAS experiment in the LHC Run 3 uses a two-level trigger system to select events of interest to reduce the 40 MHz bunch crossing rate to a recorded rate of up to 3 kHz of fully-built physics events. [...]
ATL-DAQ-PROC-2025-013. - 2025 - 6.
Original Communication (restricted to ATLAS) - Full text

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2025-09-15
13:18
tt +heavy flavor measurements from ATLAS / Timoshyn, Denys (Charles University (CZ))
Proceedings on ttbar+heavy flavor measurements from ATLAS
ATL-PHYS-PROC-2025-061. - 2025 - 7.
Original Communication (restricted to ATLAS) - Full text

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2025-09-13
22:16
Effective field theory interpretations of the search for $HH\rightarrow b\bar{b}\gamma\gamma$ with 308 fb$^{-1}$ of data collected at $\sqrt{s} = 13$ TeV and 13.6 TeV with the ATLAS detector
This note presents interpretations of a search for Higgs boson pair production in the $b\bar{b}\gamma\gamma$ final state using the Standard Model Effective Field Theory (SMEFT) and Higgs Effective Field Theory (HEFT) frameworks. [...]
ATL-PHYS-PUB-2025-034. - 2025 - 18.
Original Communication (restricted to ATLAS) - Full text

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2025-09-08
17:42
Photon showers in the ATLAS fast calorimeter simulation: A voxelized dataset with minimized information loss and improved ML models
For the upcoming high luminosity runs at ATLAS, it is necessary to replace the full calorimeter simulation with the fast calorimeter simulation in almost all cases. [...]
ATL-SOFT-PUB-2025-003. - 2025 - 33.
Original Communication (restricted to ATLAS) - Full text

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2025-09-08
10:23
Measurement of dijet transverse momentum balance in O+O and $pp$ collisions at 5.36 TeV with the ATLAS detector
In July 2025, the LHC delivered oxygen-oxygen (O+O) collisions at 5.36 TeV, and the ATLAS experiment collected 8 nb$^{-1}$ of data. [...]
ATLAS-CONF-2025-010. - 2025 - mult..
Original Communication (restricted to ATLAS) - Full text

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2025-09-05
00:23
Results for prompt dark sector mediators from ATLAS / Franchellucci, Stefano (Universite de Geneve (CH))
The presence of a non-baryonic Dark Matter (DM) component in the Universe is motivated from the observation of its gravitational interaction. [...]
ATL-PHYS-PROC-2025-060. - 2025 - 6.
Original Communication (restricted to ATLAS) - Full text

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2025-09-05
00:17
Performance evaluation of a new inner-station TGC detector for the ATLAS experiment at HL-LHC / Chiba, Kotaro (Nagoya University (JP))
The TGC detectors installed in the endcap inner stations of the ATLAS detector will be upgraded from doublet to triplet chambers to improve the granularity and redundancy of the first-level muon trigger. [...]
ATL-MUON-PROC-2025-010. - 2025 - 6.
Original Communication (restricted to ATLAS) - Full text

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2025-09-03
18:31
New Developments in the ATLAS ITk Pixel MOPS-Hub Readout / Gaa, Anne (Georg August Universitaet Goettingen (DE))
The ATLAS Experiment is developing the new Inner Tracker (ITk), consisting of a pixel and strip detector, in preparation for the High-Luminosity LHC Upgrade. [...]
ATL-ITK-PROC-2025-020. - 2025 - 4.
Original Communication (restricted to ATLAS) - Full text

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ATLAS Conference Contributions (5,872)
ATLAS PUB Notes (3,078)
ATLAS Conference Notes (1,276)