Every two years, the International Conference on High Energy Physics (ICHEP) brings together the world's leading theorists and experimentalists to present the latest advances in particle physics. The 2026 edition, hosted in Natal, Brazil, will welcome the global particle physics community from 30 July to 5 August for a week of presentations, discussions and collaboration.

The ATLAS Collaboration will present a portfolio of new results at ICHEP 2026, showcasing the breadth and strength of its research programme. Among them, first observations of polarisation in Z boson pairs and innovative new studies of double Higgs boson processes, as well as the latest searches for physics beyond the Standard Model. These results are based on the extensive datasets collected during both Run 2 (2015–2018) and the recently completed Run 3 (2022–2026) of the Large Hadron Collider (LHC).

Many of these results will be featured in dedicated physics briefings and news pieces. Follow the ICHEP 2026 tag to stay up to date with the latest ATLAS announcements, and explore the full list of new ATLAS results below as it grows during the conference.

Latest Physics Briefings and News

• DeParTing from tradition: AI sharpens quark vs gluon tagging, Physics Briefing, 30 July

New results presented at ICHEP 2026

Exotic New Physics

• Search for heavy Majorana neutrinos in vector boson scattering with τ-lepon final states (arXiv:2607.27307, see figures)
• Search for high-mass dilepton resonances in pp collisions at 13.6 TeV combined with 13 TeV results using the ATLAS detector (EXOT-2025-09)
• Search for pair-production of vector-like T quarks decaying into a top quark and a spin-0 particle in the diphoton final state in proton proton collisions at s√=13 TeV with the ATLAS detector (arXiv:2607.28381, see figures)

Higgs boson

• Study of t¯tH and tH production in the H→ττ channel in pp collisions at 13 TeV and 13.6 TeV with the ATLAS detector (arXiv:2607.27708)

Scalar boson and diboson searches

• Search for new scalars via X→SH→bb¯bb¯ in proton-proton collisions at 13 TeV with the ATLAS detector (arXiv:2607.18484, see figures)
• Search for tH production in the H→ττ decay mode, and a combination with other searches, using pp collisions at 13 TeV and 13.6 TeV with the ATLAS detector (HIGP-2026-05)
• Improved analysis of non-resonant Higgs boson pair production in the b¯bτ+τ− final state with 196 fb−1 of data collected at 13 TeV and 13.6 TeV with the ATLAS detector (arXiv:2607.26879, see figures)
• Search for Lorentz-boosted di-τ resonances produced in association with top quark pairs in 13 TeV pp collisions with the ATLAS detector (arXiv:2607.28484, see figures)

Standard Model

• Observation of pair production of longitudinally polarized Z bosons in four-lepton final state with the ATLAS detector (arXiv:2607.12879, see figures)
• Observation of the electroweak production of γγjj at 13 TeV in 140 fb−1 of pp collision data with the ATLAS detector (arXiv:2607.25869)
• Measurements of the electroweak production of a W boson in association with two jets at 13TeV with the ATLAS detector (arXiv:2607.21531, see figures)

Heavy Ions

• Measurement of J/ψ-jet correlations in pp and Pb+Pb collisions at 5.02 TeV with the ATLAS detector (arXiv:2606.31375, see figures)
• Observation of centrality-dependent dijet transverse momentum imbalance in O+O and Ne+Ne collisions at 5.36 TeV with the ATLAS detector (arXiv:2606.20463, see figures)
• Measurements of charged-particle pseudorapidity and transverse momentum distributions in O+O and Ne+Ne collisions at 5.36 TeV with the ATLAS detector (arXiv:2606.20257, see figures)
• Measurement of isolated photon plus two-jet correlations in Pb+Pb and pp collisions at 5.02 TeV with ATLAS (arXiv:2606.17760, see figures)
• Jet azimuthal anisotropies in O+O collisions at 5.36 TeV with the ATLAS detector (ATLAS-CONF-2026-006)
• Measurement of forward jet suppression in Pb+Pb collisions at 5.02 TeV with the ATLAS detector (ATLAS-CONF-2026-008)

Combined Performance

• Measurement of the b-jet identification efficiency in dileptonic tt¯ events using proton-proton collision data at s√=13.6 TeV collected with the ATLAS detector (arXiv:2607.05322, see figures)
• Simultaneous efficiency measurements of b- and c-jets in tt¯ events from 13.6 TeV pp collision data collected with the ATLAS detector (arXiv:2607.06199, see figures)
• GN3X: Improved Transformer-based Tagger for Boosted Higgs Bosons in ATLAS (ATL-PHYS-PUB-2026-013)
• The calibration of large-radius jets using the Run 2 dataset with the ATLAS detector (arXiv:/2607.25893)