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ATLAS Notes

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2026-04-15
16:40
Search for new resonances at ATLAS and CMS / Lomas, Joshua David (University of Birmingham (GB))
A plethora of beyond the Standard Model physics models have been developed to address several phenomena not explained by the Standard Model. [...]
ATL-PHYS-PROC-2026-022. - 2026 - 4.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-15
09:14
Observation of a cross-section enhancement near the $t\bar{t}$ production threshold in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector / Behr, Janna Katharina (Deutsches Elektronen-Synchrotron (DE))
A significant excess of $t\bar{t}$ events near the production threshold was recently observed in LHC Run-2 data by the ATLAS Collaboration. [...]
ATL-PHYS-PROC-2026-021. - 2026 - 4.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-14
10:03
Searches for vector-like quarks and leptoquarks at ATLAS and CMS / Grancagnolo, Sergio (INFN Lecce e Universita del Salento (IT))
Most recent results from the ATLAS and CMS experiments are presented: using about 140 fb$^{-1}$ of $pp$ collisions data at 13 TeV, collected during the LHC Run 2, searches of leptoquarks and vector-like quarks are performed, in various production modes and decay channels..
ATL-PHYS-PROC-2026-020. - 2026 - 6.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-13
10:10
Investigation of the current-generation mechanisms in the edge region of planar silicon sensors / Bloch, Ingo (Deutsches Elektronen-Synchrotron (DE)) ; Bruers, Ben (Deutsches Elektronen-Synchrotron (DE)) ; Fadeyev, Vitaliy (University of California,Santa Cruz (US)) ; Lacker, Heiko Markus (Humboldt University of Berlin (DE)) ; Li, Peilin (Deutsches Elektronen-Synchrotron (DE)) ; Scharf, Christian (Humboldt University of Berlin (DE)) ; Ullan, Miguel (Consejo Superior de Investigaciones Cientificas (CSIC) (ES)) ; Unno, Yoshinobu (KEK High Energy Accelerator Research Organization (JP))
This paper presents current–voltage measurements of guard-ring and pad currents in high-resistivity n+pp+ diodes developed for the ATLAS Inner Tracker (ITk) upgrade. [...]
ATL-ITK-PROC-2026-014. - 2026 - 5.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-10
16:47
New results from test-beam performance studies of 3D triplet modules for the ATLAS ITk detector / Ravera, Simone (INFN e Universita Genova (IT))
For the High Luminosity upgrade of the Large Hadron Collider (HL-LHC), the ATLAS Inner Detector will be replaced by the all-silicon Inner Tracker (ITk), designed to operate in a significantly more challenging radiation environment and at higher collision rates. [...]
ATL-ITK-PROC-2026-013. - 2026 - 5.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-10
16:41
Measurement of the $|V_{cb}|$ element of the CKM matrix in $t\bar{t}$ decays with the ATLAS detector / Warnerbring, Adam Leonard (Universitaet Siegen (DE))
These proceedings present a recent ATLAS measurement of the fundamental Standard Model parameter $|V_{cb}|$. [...]
ATL-PHYS-PROC-2026-019. - 2026 - 4.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-10
11:47
ATLAS wildcard: Searches for massive, long-lived particles in events with displaced vertices with ATLAS / Rousso, David (Deutsches Elektronen-Synchrotron (DE)) ; ATLAS Collaboration
Many recent efforts at the LHC have been made to search for new particles that do not decay promptly but are instead long-lived. [...]
ATL-PHYS-PROC-2026-018. - 2026 - 6.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-07
08:44
Probing the Top-Higgs Quartic interaction through an EFT interpretation of $t\bar{t}HH$ production at ATLAS / Auriol, Adrien (Université Clermont Auvergne (FR))
The associated production of a Higgs boson pair with a top-quark pair ($t\bar{t}HH$) provides a unique and direct probe of the top-Higgs sector beyond the Standard Model. [...]
ATL-PHYS-PROC-2026-017. - 2026 - 4.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-06
19:41
Simulation of the Electrical Performance of the ITk ATLAS18 Test Diode and Strip Main Sensors Before Irradiation / Zhao, Yuzhan (Carleton University (CA)) ; Klein, Christoph Thomas (Carleton University (CA)) ; Dandoy, Jeff (Carleton University (CA)) ; Keller, John Stakely (Carleton University (CA)) ; Staats, Ezekiel (Carleton University (CA)) ; Jessiman, Callan (Carleton University (CA)) ; Koffas, Thomas (Carleton University (CA)) ; Fadeyev, Vitaliy (University of California,Santa Cruz (US)) ; Ullan, Miguel (Consejo Superior de Investigaciones Cientificas (CSIC) (ES)) ; Unno, Yoshinobu (KEK High Energy Accelerator Research Organization (JP)) - measurements simulation measurements measurements simulation simulation, measurements AC (activity coordinator) AC (activity coordinator) AC (activity coordinator)
This paper presents a two-dimensional (2D) Sentaurus TCAD model tuned using optical and electrical characterization data from test diodes fabricated on the same wafer as the strip sensors. [...]
ATL-ITK-PROC-2026-012. - 2026 - 6.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
2026-04-02
11:42
Performance of the new ATLAS LAr Calorimeter Digital Trigger and its possible application to luminosity measurement / Pozzi, Ruben (Université Paris-Saclay (FR))
The Liquid Argon Calorimeters are employed by the ATLAS detector for all electromagnetic calorimetry in the pseudorapidity region |𝜂| < 3.2, and for hadronic and forward calorimetry in the region from |𝜂| = 1.5 to |𝜂| = 4.9. [...]
ATL-LARG-PROC-2026-002. - 2026 - 5.
Original Communication (restricted to ATLAS) - Full text

Notice détaillée
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