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ATLAS Papers

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2026-05-19
09:05
Measurements of the Higgs boson production, fiducial and differential cross-sections in the four lepton decay channel using 164 fb$^{-1}$ of data collected at $\sqrt{s}$ = 13.6 TeV with the ATLAS detector
Inclusive, differential and production-mode cross-section measurements of the Higgs boson are performed in the $H \to ZZ^{*} \to 4\ell$ decay channel. [...]
CERN-EP-2026-112. - 2026
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2026-05-18
10:17
Observation of a $B_c^{*+}$ meson with the ATLAS detector / ATLAS Collaboration
The first observation of a new meson state decaying into $B_c^+$ and a photon is presented using a dataset of $pp$ collisions at a centre-of-mass energy $\sqrt{s} = 13$ TeV collected by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb$^{-1}$ [...]
arXiv:2605.16228 ; CERN-EP-2026-142. - 2026 - 32 p, 32.
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2026-05-14
11:44
Search for charginos and neutralinos with $B-L$ $R$-parity violating decays in $\sqrt{s}=13$ TeV and $13.6$ TeV $pp$ collisions with the ATLAS detector / ATLAS Collaboration
A search is performed for the electroweak pair production of charginos and associated production of a chargino and neutralino, each of which decays through an $R$-parity-violating coupling into a lepton and a $W$, $Z$, or Higgs boson. [...]
arXiv:2605.13819 ; CERN-EP-2026-138. - 2026 - 47.
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2026-05-11
11:38
Track and Vertex Reconstruction with the ATLAS Inner Detector / ATLAS Collaboration
Charged-particle reconstruction is a fundamental part of the event reconstruction in modern multi-purpose high-energy physics detectors. [...]
arXiv:2605.07585 ; CERN-EP-2026-096. - 2026 - 74.
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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 / ATLAS Collaboration
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. [...]
arXiv:2605.04584 ; CERN-EP-2026-135. - 2026 - 56.
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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 / ATLAS Collaboration
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$^2$. [...]
arXiv:2605.05030 ; CERN-EP-2026-129. - 2026 - 40.
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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 - 32.
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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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