Summary of new ATLAS results from Moriond 2025
23 March 2025 | By
As the days grow longer and the seasons shift, particle physicists spring forward into conference mode! Every Spring, all eyes turn to La Thuile (Italy) for the arrival of the annual Recontres de Moriond conferences. Starting on 23 March with the Electroweak Interactions & Unified Theories conference, followed by the QCD and High Energy Interactions conference on 30 March, these meetings bring together theorists and experimentalists from around the world to share their latest findings.
Results from the ATLAS Collaboration will be at the forefront, with ATLAS physicists presenting high-precision measurements of the W boson and top quark, novel searches for exotic particles, and new insights into the Higgs boson — all made possible using the LHC Run 2 (2015–2018) and Run 3 (2022–ongoing) datasets.
Several of these ATLAS analyses will be featured in upcoming physics briefings, with many more presented in conference talks. Keep up with the latest by following the 2025 Moriond conference tag. Explore the full list of new ATLAS results below, which will be updated as the conferences progress.
New results presented at the 2025 Moriond Conferences
B-Physics
- Differential cross-section measurements of D± and D±s meson production in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2412.15742, see figures)
Exotic new physics
- Search for heavy neutral leptons in decays of W bosons using leptonic and semi-leptonic displaced vertices in 13 TeV proton-proton collisions with the ATLAS detector (arXiv:2503.16213, see figures)
- Search for vector-like leptons coupling to first- and second-generation Standard Model leptons in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2411.07143, see figures)
Scalar boson and diboson searches
- Weakly supervised anomaly detection for resonant new physics in the dijet final state using proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2502.09770, see figures)
- Search for Higgs boson exotic decays into Lorentz-boosted light bosons in the four-τ final state at 13 TeV with the ATLAS detector (arXiv:2503.05463, see figures)
- Search for Higgs boson decays into a pair of pseudoscalar particles in the γγτhadτhad final state using proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2412.14046, see figures)
- Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb−1 of proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2502.06694, see figures)
- Search for cascade decays of charged sleptons and sneutrinos in final states with three leptons and missing transverse momentum in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2503.13135, see figures)
Standard Model
- Evidence for longitudinally polarized W bosons in the electroweak production of same-sign W boson pairs in association with two jets in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2503.11317, see figures)
- Measurement of double-differential charged-current Drell-Yan cross-sections at high transverse masses in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2502.21088, see figures)
- Measurement of W±-boson differential cross-sections in proton-proton collisions with low pile-up data at 5.02 TeV and 13 TeV with the ATLAS detector (arXiv:2502.09403, see figures)
- Observation of VVZ production 13 TeV with the ATLAS detector (arXiv:2412.15123, see figures)
- Cross-section measurements for the production of a W-boson in association with high-transverse-momentum jets in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2412.11644, see figures)
- Measurement of jet track functions in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2502.02062, see figures)
Supersymmetry
- Prospects for a search for direct pair production of top squarks at the high-luminosity LHC with the ATLAS detector (ATL-PHYS-PUB-2024-001)
Top Quark
- Measurement of the top quark mass with the ATLAS detector using tt¯ events with a high transverse momentum top quark (arXiv:2502.18216, see figures)
