ATLAS Papers

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2026-05-07
09:22

Differential measurements of $\gamma\gamma\to\tau\tau$ and constraints on $\tau$-lepton electromagnetic moments in Pb+Pb collisions at $\sqrt{s_{_\text{NN}}} = 5.02$ TeV with ATLAS
This paper presents the first differential fiducial measurements of $\gamma\gamma\to\tau\tau$ using 1.93 nb$^{-1}$ of Pb+Pb data at $\sqrt{s_{_\text{NN}}} = 5.02$ TeV recorded by the ATLAS detector. [...]
CERN-EP-2026-135. - 2026
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2026-05-07
09:09

Study of Particle Fluence Effects on Collected Charge and Depletion Voltage of the ATLAS IBL Planar Pixel Sensors
After ten years of operation at the LHC, the planar pixel sensors of the innermost barrel layer of the ATLAS Pixel detector have accumulated an average bulk damage fluence in excess of $2\times10^{15}$ 1 MeV-neutrons equivalent/cm$^2$. [...]
CERN-EP-2026-129. - 2026
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2026-05-05
13:28

Study of $t\bar{t}$ threshold effects in $e\mu$ differential distributions measured in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
The recent ATLAS measurement of the normalised $e\mu$ dilepton invariant mass and azimuthal angle distributions in $\sqrt{s}=13$ TeV $pp$ collisions at the Large Hadron Collider is extended to study the sensitivity to the formation of quasi-bound states near the $t\bar{t}$ threshold. [...]
arXiv:2605.02341 ; CERN-EP-2026-107. - 2026 - 31.
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2026-04-27
15:50

Measurement of jet photoproduction in ultra-peripheral Pb+Pb collisions without nuclear breakup at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with the ATLAS detector / ATLAS Collaboration
In ultra-relativistic heavy ion collisions at the LHC, each nucleus acts as a source of high-energy quasi-real photons that can participate in scattering processes without causing either participating nucleus to break up and emit forward neutrons. [...]
arXiv:2604.24435 ; CERN-EP-2026-125. - 2026 - 44.
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2026-04-24
07:30

Effective field theory interpretation of ATLAS measurements involving the Higgs boson, electroweak bosons and the top quark / ATLAS Collaboration
Wilson coefficients in dimension-six effective field theory are constrained in a combined fit to several ATLAS measurements. [...]
arXiv:2604.21670 ; CERN-EP-2026-113. - 2026 - 65.
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2026-04-22
16:37

Observation of impact parameter dependent modifications of nuclear parton distributions in photonuclear Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with the ATLAS detector / ATLAS Collaboration
High-energy photonuclear ($\gamma+A$) scattering in ultra-peripheral heavy-ion collisions provides a unique probe of nuclear structure. [...]
arXiv:2604.20559 ; CERN-EP-2026-095. - 2026 - 33.
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2026-04-21
17:34

Search for quantum black holes in lepton+jet final states using proton-proton collisions at $\sqrt{s}=13.6$ TeV with the ATLAS detector / ATLAS Collaboration
A search for quantum black holes in electron+jet or muon+jet final states with high invariant mass is performed. [...]
arXiv:2604.19495 ; CERN-EP-2026-053. - 2026 - 36.
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2026-04-12
16:41

Measurement of charged-particle production in $\sqrt{s_\text{NN}}=9.62$ TeV proton-oxygen collisions as a probe of cosmic-ray air showers with the ATLAS detector
This Letter presents a measurement of prompt charged-particle production in proton-oxygen interactions at $\sqrt{s_\text{NN}}=9.62$ TeV center-of-mass energy with the ATLAS detector, corresponding to 634 $\mu$b$^{-1}$ of integrated luminosity. [...]
arXiv:2604.05512 ; CERN-EP-2026-106. - 2026 - 36.
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2026-03-29
10:24

Measurements of $Z$-boson pair entanglement in decays of Higgs bosons at the ATLAS experiment / ATLAS Collaboration
Entanglement is a key property of quantum systems. [...]
arXiv:2603.26463 ; CERN-EP-2026-061. - 2026 - 36.
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2026-03-24
11:16

Measurement and interpretation of inclusive $W\gamma$ production in proton-proton collisions at $\sqrt{s}=13$ TeV using the ATLAS detector / ATLAS Collaboration
Differential cross-section measurements are presented for the production of a $W$ boson in association with a photon. [...]
arXiv:2603.22478 ; CERN-EP-2026-078. - 2026 - 57.
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