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ATLAS Preprints

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2025-09-17
17:19
Observation of $W^{+}W^{-}\gamma$ production in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector and constraints on anomalous quartic gauge-boson couplings
This Letter reports the observation of $W^{+}W^{-}\gamma$ triboson production in 140 fb$^{-1}$ of data collected by the ATLAS detector from proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV at the LHC. [...]
CERN-EP-2025-187. - 2025
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2025-09-17
16:53
Measurement of the $W$-boson angular coefficients and transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
The angular distributions of Drell-Yan lepton pairs provide sensitive probes of the underlying dynamics of quantum chromodynamics (QCD) effects in vector-boson production. [...]
CERN-EP-2025-188. - 2025
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2025-09-17
16:26
Search for Higgs bosons produced in association with a high-energy photon via vector-boson fusion and decaying to a pair of $b$-quarks in the ATLAS detector
A search for Standard Model Higgs bosons produced in association with a high-energy photon and decaying to $b\bar{b}$ is performed using 133 fb$^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collision data collected with the ATLAS detector at the Large Hadron Collider at CERN. [...]
CERN-EP-2025-110. - 2025
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2025-09-17
10:29
Observation of structures in the $J/\psi +\psi(2S)$ mass spectrum with the ATLAS detector
A search for resonant structures in the $J/\psi +\psi$(2S) mass spectrum is performed using proton-proton collision data at $\sqrt{s}=13$ TeV, corresponding to an integrated luminosity of 140 fb$^{-1}$, recorded by the ATLAS experiment at the LHC. [...]
CERN-EP-2025-182. - 2025
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2025-09-15
14:33
Vector boson plus jets measurements at ATLAS / CMS / LHCb / Hugo Alberto Becerril Gonzalez /ATLAS, CMS and LHCB Collaborations
The study of vector boson production in association with jets (V+jets, where V = W, Z, $\gamma$) is a crucial component of the LHC physics program. These processes serve both as stringent tests of perturbative Quantum Chromodynamics (pQCD) and as important backgrounds in searches for new physics and precision measurements, including Higgs boson studies and top quark analyses. [...]
CMS-CR-2025-147.- Geneva : CERN, 2025 - 6 p. Fulltext: PDF;
In : 13th Edition of the Large Hadron Collider Physics Conference (LHCP2025), Taipei, Tw, 5 - 9 May 2025

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2025-09-08
10:43
Searches for LLPs and FIPs / Valuev, Viatcheslav (UCLA) /ATLAS and CMS Collaborations
Recent results of the searches for exotic long-lived and feebly interacting particles in the ATLAS and CMS experiments at the CERN LHC are presented..
CMS-CR-2025-156.- Geneva : CERN, 2025 - 12 p. Fulltext: PDF;
In : 13th Edition of the Large Hadron Collider Physics Conference (LHCP2025), Taipei, Tw, 5 - 9 May 2025

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2025-09-05
19:37
Measurement of the azimuthal anisotropy of charged particles in $\sqrt{s_{\mathrm{NN}}}=5.36$ TeV $^{16}$O$+^{16}$O and $^{20}$Ne$+^{20}$Ne collisions with the ATLAS detector / ATLAS Collaboration
This paper presents the first measurements of the azimuthal anisotropy coefficients $v_{n}$, which quantify the $n^{\mathrm{th}}$-order Fourier modulation of charged-particle azimuthal distributions, for $n=2$-4 in $\sqrt{s_{\mathrm{NN}}}=5.36$ TeV $\mathrm{^{16}O}+\mathrm{^{16}O}$ and $\mathrm{^{20}Ne}+\mathrm{^{20}Ne}$ collisions recorded with the ATLAS detector at the Large Hadron Collider in 2025. [...]
arXiv:2509.05171 ; CERN-EP-2025-200. - 2025 - 44.
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2025-09-04
14:15
Measurement of coherent exclusive $J/\psi\to\mu^+\mu^-$ production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{\textrm{NN}}}=5.36$ TeV with the ATLAS detector / ATLAS Collaboration
The ATLAS experiment has performed a measurement of coherent exclusive $J/\psi\to\mu^+\mu^-$ production in ultraperipheral Pb+Pb collisions at $\sqrt{s_{\textrm{NN}}}=5.36$ TeV [...]
arXiv:2509.04135 ; CERN-EP-2025-180. - 2025 - 44.
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2025-09-01
12:02
Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in $132$ fb$^{-1}$ of $pp$ collisions at $\sqrt{s} = 13$ TeV / ATLAS Collaboration
This article reports on a search for dijet resonances using $132$ fb$^{-1}$ of $pp$ collision data recorded at $\sqrt{s} = 13$ TeV by the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2509.01219 ; CERN-EP-2025-194. - 2025 - 45.
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2025-08-29
08:56
Search for heavy neutral leptons in decays of $W$ bosons produced in 13 TeV $pp$ collisions using prompt signatures in the ATLAS detector / ATLAS Collaboration
The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dark matter. [...]
arXiv:2508.20929 ; CERN-EP-2025-164. - 2025 - 44.
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