ATLAS

ATLAS Turns Into a Precision Cosmic Ray Laboratory

Event display of a proton-oxygen collision recorded in ATLAS Run 501640 on 1st July 2025 at 23:23:29 CEST. The event contains 19 reconstructed tracks (yellow lines) satisfying pT > 500 MeV with at least one Pixel hit and at least six SCT hits.…

AI for Gravitational Waves: Building Bridges Between Scientific Communities

As gravitational-wave observatories enter a new phase of sensitivity, scale and scientific ambition, the challenge is no longer only to detect faint ripples in spacetime. It is also to analyse, interpret and respond to them fast enough to open new…

Rucio crosses the exabyte horizon

When we last wrote in these pages about Rucio, ATLAS had just passed the half-exabyte mark and the community counted around thirty organisations. Six years on, a threshold that was then a distant projection has been crossed: both ATLAS and CMS, the…

Towards monitoring in Run 4 and beyond: LHC experiments exchange perspectives on data quality at the HL-LHC

In March of 2026, experts from ALICE, ATLAS, CMS and LHCb gathered at CERN for a dedicated workshop on Data Quality Monitoring (DQM), bringing together developers, coordinators and detector specialists to discuss how the LHC experiments monitor the…

ATLAS scales up AI for jet physics and reveals flavour-tagging scaling laws

High Energy Physics (HEP) and Machine Learning (ML/AI) are uniquely aligned: The data recorded by particle physics experiments are so rich, heterogeneous and complicated that scientists crucially depend on advanced pattern recognition in order to…

Probing flavour violations of the Standard Model with ATLAS

Every aspect of our world – from atomic nuclei and molecular chemistry to biology and astrophysics – emerges from the interactions of particles so small they are considered point-like. While some particles, like the electron, were discovered over a…

Dark Showers at the LHC: from benchmarks to Run-3 readiness

The search for new physics at the LHC increasingly pushes beyond traditional signatures. Among the most intriguing possibilities are dark showers—complex cascades of particles emerging from dark-sector dynamics, capable of producing rich,…

Triple Higgs Frontiers: Mapping the Higgs self-couplings at the 2025 HHH workshop

More than a decade after the discovery of the Higgs boson, attention is shifting from finding the Higgs to mapping its self-interactions. These self-couplings determine the shape of the Higgs potential, and with it the stability of our vacuum and…

Highlights from the 2nd NGT Technical Workshop

Participants of the 2nd Next Generation Triggers Technical Workshop at the Globe of Science and Innovation. Picture: Mariana Velho From 19 to 21 November 2025, the Next Generation Triggers (NGT) project held its 2nd Technical Workshop at CERN’s…

Light ions at the LHC: first results from oxygen–oxygen and neon–neon collisions

This summer, the Large Hadron Collider (LHC) delivered its first-ever collisions between light ions, opening a new chapter in the study of nuclear structure and the quark–gluon plasma (QGP) – the extreme state of matter that existed in the first…

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