A word from the EP Deputy Department Head - June 2025
Dear colleagues,
As I write this editorial, the 2025 experimental programme is in full swing, and the high temperatures are a reminder that summer is here...
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Interviews & Features
Next-Generation CO₂ Cooling Systems Powering the Future of ATLAS and CMS
CERN engineers are deploying innovative CO₂ cooling systems that enhance efficiency, reduce environmental impact, and ensure precise temperature control for the upgraded ATLAS and CMS detectors.
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Calorimetry and light-based detectors for future experiments
From ultra-fast timing with scintillating crystals to cryogenic photon sensors and next-gen calorimeters, WP 3 of CERN’s EP R&D programme is pushing the limits of light-based detection technologies.
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The ATLAS Inner Tracker Integration at CERN
The ATLAS Inner Tracker (ITk) is entering a crucial phase of assembly, with major advancements in detector integration bringing the all-silicon upgrade closer to readiness for the high-precision demands of the HL-LHC era.
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CWDM Link: A High-Bandwidth Optical Upgrade for LHC Beam Instrumentation
Developed to meet the demanding requirements of the HL-LHC era, the CWDM Link project delivers a robust, radiation-tolerant optical solution capable of 40 Gb/s data transmission over kilometers of fibre.
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CMS Inaugurates Its New Control Room
On 15 May 2025, CMS unveiled its brand-new control room in Cessy, France — a cutting-edge space built to support the increasingly complex operations of the experiment as it prepares for the High-Luminosity LHC era.
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CLUE: A Scalable Clustering Algorithm for the Data Challenges of Tomorrow
CLUE is a fast, GPU-optimised clustering algorithm that combines energy weighting with density-based logic to tackle the complex data challenges of high-granularity detectors at the HL-LHC and beyond.
Read MOREResults from the experiments
AMS-02: A New Chapter in Orbit to Probe the Nature of Cosmic Rays
As the AMS-02 experiment enters its final chapter aboard the ISS, a major upgrade led by CERN and international partners is poised to push its sensitivity to new extremes.
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Decoding r-Process Nucleosynthesis: Precision Studies of Exotic Indium Isotopes at ISOLDE
Recent high-resolution decay spectroscopy at CERN’s ISOLDE facility challenges conventional nuclear models and offers unprecedented insights into beta-delayed neutron emission in the astrophysical r-process.
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Heavy isotopes production via electromagnetic interactions at the LHC
ALICE’s latest measurements at the LHC unveil rare nuclear transformations—from lead to gold—offering fresh insights into ultra-peripheral collisions and challenging existing theoretical models.
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Anomaly at the Threshold: A Closer Look at tt̄ Events in CMS
A feature previously observed by CMS in 2019 has reappeared in a new analysis of the full Run 2 dataset, this time with increased statistical significance. The article explores possible Standard Model origins, including toponium, and outlines next steps to clarify the effect with Run 3 data.
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ATLAS Approaching a Breakthrough in Diboson Polarization with Run-3 Data
A new era of precision in vector boson scattering is unveiling the deepest layers of the Higgs mechanism, bringing us closer to answers at the heart of the Standard Model—and beyond.
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TELMAX: A New Era of Flexibility at CERN's Antimatter Factory
A dormant CERN beamline springs back to life as TELMAX, a new hub for antimatter experimentation, precision X-ray detection, and groundbreaking quantum sensing.
Read MORESpecial Features
A Day of Innovation: EP R&D 2025 in Focus
From poster awards to strategic insights, the 2025 EP R&D Day showcased the technologies shaping the future of particle physics.
Read MOREShaping Detector Innovation: Highlights from CERN’s EP-DT Group Annual Report
CERN’s Detector Technologies (EP-DT) group has powered up detector innovation in 2024. Discover the upgrades driving the HL-LHC era and the R&D shaping future experiments across and beyond the LHC.
Read MORELHCb Upgrade II Scoping Document
CERN backs the “Middle” path for LHCb Upgrade II, paving the way to a new era of precision flavour physics at the HL-LHC.
Read MOREFCC Week 2025: First Gathering After Feasibility Study to Discuss the Way Forward
Held in Vienna, FCC Week 2025 was the first major meeting following the completion of the FCC Feasibility Study, bringing the international community together to review results and outline the next steps.
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