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ATLAS Preprints

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2026-06-02
08:40
Search for electroweak scale dijet resonances in pile-up collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
A search for dijet resonances in the mass range of 100-250 GeV is presented using proton-proton collision data recorded by the ATLAS experiment at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. [...]
CERN-EP-2026-147. - 2026
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2026-06-02
08:08
Search for a leptoquark in events with a hadronically decaying $\tau$-lepton and missing transverse momentum using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
A search for leptoquark signals is performed in final states with a hadronically decaying $\tau$-lepton and missing transverse momentum, using data from proton--proton collisions at a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded by the ATLAS detector at the Large Hadron Collider during Run 2 (2015-18), corresponding to an integrated luminosity of 140 fb$^{-1}$. [...]
CERN-EP-2026-136 ; arXiv:2606.02067. - 2026
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2026-05-29
18:38
Status and prospects of rare decay searches at ATLAS and CMS / Buonsante, Marco (INFN, Bari ; Bari U.) /ATLAS and CMS Collaborations
Rare decays with dimuon and multimuon final states provide clean tests of the Standard Model at the LHC. This proceeding summarizes recent ATLAS and CMS results on $B_{(s)}^0\to\mu^+\mu^-$, including branching-fraction measurements and effective-lifetime information, together with the first Run~3 search for $D^0\to\mu^+\mu^-$ and the full Run~2 angular analysis of $B^0\to K^{*0}\mu^+\mu^-$. [...]
CMS-CR-2026-064.- Geneva : CERN, 2026 - 9 p. Fulltext: PDF;
In : Workshop Italiano sulla Fisica ad Alta Intensità (WIFAI 2025), Bari, Italy, 11- 14 Nov 2025

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2026-05-29
14:04
Measurement of the cross-section for the production of a $W$ boson in association with $b$-jets in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector / ATLAS Collaboration
This paper presents a measurement of the production cross-section of a $W$ boson associated with one or two jets, where at least one jet originates from a $b$-quark. [...]
arXiv:2605.31205 ; CERN-EP-2026-146. - 44 p, 44.
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2026-05-28
10:07
Search for pair-produced vector-like $T$-quarks decaying into $Ht$ final states in the lepton-plus-jets channel in $pp$ collisions at $\sqrt{s}$=13 TeV with the ATLAS detector / ATLAS Collaboration
A search for pair-produced vector-like $T$-quarks in 139 fb$^{-1}$ of $pp$ collisions recorded by the ATLAS detector at a centre-of-mass energy $\sqrt{s}$=13 TeV is presented. [...]
arXiv:2605.28538 ; CERN-EP-2026-131. - 2026 - 58.
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2026-05-26
10:56
Review of flavour physics at ATLAS and CMS / Lyon, Anne-Mazarine (CERN) /ATLAS and CMS Collaborations
A review of recent results in flavour physics at the ATLAS and CMS experiments is presented. These include measurements of quarkonia and charm production cross sections, the $B^0$ lifetime, and the mass splittings between excited and ground B~meson states. [...]
arXiv:2605.24440; CMS-CR-2026-052.- Geneva : CERN, 2026 - 5 p. Fulltext: CR2026_052 - PDF; 2605.24440 - PDF;
In : 60th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, It, 22 - 29 Mar 2026

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2026-05-20
13:55
New measurements of single top and $\mathrm{t \bar{t}}$ production at ATLAS and CMS / Jeppe, Laurids (CERN) /ATLAS and CMS Collaborations
Recent measurements of single top and $\mathrm{t \bar{t}}$ production at the ATLAS and CMS experiments are summarized. Topics covered are a measurement of $t$-channel single top production at $\sqrt{s} = 5.02\,\mathrm{TeV}$, differential $t$-channel cross sections at $\sqrt{s} = 13\,\mathrm{TeV}$, $\mathrm{WbW\bar{b}}$ differential cross sections in the dilepton and lepton+jets channels probing on- and off-shell top contributions, the most precise inclusive $\mathrm{t \bar{t}}$ cross section measurement to date, the first observation of $\mathrm{t \bar{t}}$ production in PbPb collisions at $\sqrt{s_\mathrm{NN}}} = 5.36\,\mathrm{TeV}$, a combined ATLAS+CMS measurement of the $\mathrm{t \bar{t}}$ spin-correlation observable $\Delta \varphi_{\ell\ell}$, and a characterization of the quantum state of the $\mathrm{t \bar{t}}$ system based on the spin density matrix..
CMS-CR-2026-046.- Geneva : CERN, 2026 - 5 p. Fulltext: PDF;
In : 60th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, It, 22 - 29 Mar 2026

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2026-05-20
07:46
Search for soft unclustered energy patterns containing muons in the final state in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector / ATLAS Collaboration
Soft unclustered energy patterns (SUEPs) refer to high-multiplicity, isotropic distributions of low-momentum particles that could arise in strongly-coupled hidden sector theories. [...]
arXiv:2605.20015 ; CERN-EP-2026-148. - 2026 - 45.
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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 / ATLAS Collaboration
Inclusive, differential and production-mode cross-section measurements of the Higgs boson are performed in the $H \to ZZ^{*} \to 4\ell$ decay channel. [...]
arXiv:2605.19016 ; CERN-EP-2026-112. - 2026 - 68.
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2026-05-18
19:28
Searches for new physics with top quarks in ATLAS and CMS / Iemmi, Fabio (Beijing, Inst. High Energy Phys.) /ATLAS and CMS Collaborations
The latest results by the ATLAS and CMS Collaborations on searches for new physics phenomena involving the production of top quarks are summarized. Both direct searches for new particles and interpretations of Standard Model measurements in terms of the presence of new physics are reported..
CMS-CR-2026-040.- Geneva : CERN, 2026 - 6 p. Fulltext: PDF;
In : 60th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 15 - 22 Mar 2026

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