Summary of new ATLAS results from 2023 Winter Conferences
16 March 2023 | By
The winter conference season has begun! This month, all roads lead to La Thuile in the Italian Alps, where experimental physicists and theorists will take part in some of the most important particle physics meetings of the year. The La Thuile and Rencontres de Moriond conferences promise not to disappoint, with topical sessions ranging from heavy-ion and neutrino physics, to dark matter searches and astroparticle observations.
The La Thuile conference kicked off Sunday 5 March. The first Moriond conference, Electroweak Interactions & Unified Theories, will begin on 18 March, followed closely by the second one, QCD and High Energy Interactions, on 25 March. ATLAS Collaboration members will attend throughout, unveiling several new analyses of the LHC Run-2 dataset (2015-2018) and first results studying the Run-3 dataset (2022-ongoing). Look forward to exciting observations of new processes, the most recent insights in the search for new physics, new high-precision measurements of fundamental particles, and much more.
Several of these key results will be explored in physics briefings – check the 2023 Winter Conferences tag for the latest updates – and several more will be presented in conference talks. Explore the full list of new ATLAS results in the links below, which will be updated as the meetings progress.
Latest Physics Briefings and News
- Tau & co.: the search for new physics with the heaviest leptons, Physics Briefing, 21 March 2023
- Searching from top to bottom for lepton unity, Physics Briefing, 22 March 2023
- New ATLAS result weighs in on the W boson, Physics Briefing, 23 March 2023
- Improved ATLAS result weighs in on the W boson, CERN Press Release, 23 March 2023
- ATLAS measures the strength of the strong force, Physics Briefing, 23 March 2023
- ATLAS observes the simultaneous production of four top quarks, Physics Briefing, 24 March 2023
- ATLAS and CMS observe simultaneous production of four top quarks, CERN News, 24 March 2023
- ATLAS confirms mild tension in production of top-quark pairs with a W boson, Physics Briefing, 24 March 2023
- LHC passes a new milestone, Physics Briefing, 24 March 2023
- Probing fundamental symmetries of nature with the Higgs boson, Physics Briefing, 31 March 2023
- Probing fundamental symmetries of nature with the Higgs boson, CERN News, 21 April 2023
- ATLAS Highlights from the Moriond 2023 conference, ATLAS News, 2 May 2023
New results presented at the 2023 Winter Conferences
Scalar boson and diboson searches
- Search for exclusive Higgs and Z boson decays to ωγ and Higgs boson decays to K∗γ with the ATLAS detector (arXiv:2301.09938, see figures)
- Summary of ATLAS searches for Higgs and Z boson decays to a meson and a photon (ATL-PHYS-PUB-2023-004)
Standard Model
- Combined effective field theory interpretation of W±Zjj and W±W±jj measurements using ATLAS 13 TeV data (ATL-PHYS-PUB-2023-002)
- Measurement of Zγγ production in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2211.14171, see figures)
- Observation of WZγ production in proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2023-014)
- Observation of Wγγ triboson production in proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2023-005)
- Measurements of W+W− production cross sections in proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2023-012)
- Measurements of Zγ+ jets differential cross sections in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2212.07184, see figures)
- Improved W boson Mass Measurement using 7 TeV Proton-Proton Collisions with the ATLAS Detector (ATLAS-CONF-2023-004)
- Measurement of the transverse momentum and rapidity distributions of the boson at 8 TeV with the ATLAS detector (ATLAS-CONF-2023-013)
- A precise determination of the strong-coupling constant from the recoil of Z bosons with the ATLAS experiment at 8 TeV (ATLAS-CONF-2023-015)
- Measurement of the production of a W boson in association with a charmed hadron in proton-proton collisions at 13TeV with the ATLAS detector (arXiv:2302.00336, see figures)
- Determination of the strong coupling constant from transverse energy−energy correlations in multijet events at 13 TeV with the ATLAS detector (arXiv:2301.09351, see figures)
- Inclusive-photon production and its dependence on photon isolation in proton-proton collisions at 13 TeV using 139 fb−1 of ATLAS data (arXiv:2302.00510, see figures)
Top Quark
- Observation of single-top-quark production in association with a photon using the ATLAS detector (arXiv:2302.01283, see figures)
- Measurement of the inclusive tt̄ production cross section in the lepton+jets channel in proton-proton collisions at 7 TeV with the ATLAS detector using support vector machines (arXiv:2212.00571, see figures)
- Measurement of the tt̄ cross-section and tt̄/Z cross-section ratio using LHC Run 3 proton-proton collision data at a centre-of-mass energy of 13.6 TeV (ATLAS-CONF-2022-070)
- Measurement of lepton kinematic distributions in the eμ decay channel of tt̄ events observed in proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2022-061)
- Search for leptonic charge asymmetry in tt̄W production in final states with three leptons at 13 TeV (arXiv:2301.04245, see figures)
- Search for charged-lepton-flavour violating μτqt interactions in top-quark production and decay with the ATLAS detector at the LHC (ATLAS-CONF-2023-001)
- Measurement of the charge asymmetry in top-quark pair production in association with a photon with the ATLAS experiment (arXiv:2212.10552, see figures)
Exotic New Physics
- Search for pair production of third-generation leptoquarks decaying into a bottom quark and a τ-lepton with the ATLAS detector (arXiv:2303.01294, see figures)
- Search for excited τ-leptons and leptoquarks in the final state with τ-leptons and jets in proton–proton collisions at 13 TeV with the ATLAS detector (arXiv:2303.09444, see figures)
- Search for top-philic heavy resonances in proton–proton collisions at 13 TeV with the ATLAS detector (EXOT-2022-14)
- Search for high-mass resonances in photon plus missing transverse momentum signatures in proton-proton collisions at 13 TeV with the ATLAS detector (ATL-PHYS-PUB-2023-003)
- Search for leptoquarks decaying into bτ final state in proton–proton collisions at 13 TeV with the ATLAS detector (EXOT-2022-39)
- Search for heavy Majorana or Dirac neutrinos and right-handed W gauge bosons in final states with charged leptons and jets at 13 TeV with the ATLAS detector (EXOT-2019-39)
- Search for an Axion-Like Particle with forward proton scattering in association with photon pairs at ATLAS (ATLAS-CONF-2023-002)
- Summary plots from ATLAS searches for pair-produced leptoquarks (ATL-PHYS-PUB-2023-006)
- Summary plots for heavy particle searches and long-lived particle searches (ATL-PHYS-PUB-2023-008)
- Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb−1 of proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2023-010)
- Search for singly produced vector-like top partners in multilepton final states with 139 fb−1 data collected from proton-proton collisions at 13 TeV with the ATLAS detector (ATLAS-CONF-2023-020)
