Category: Newsletter
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Bound state, found state – ATLAS ties the knot on top quark pair production at threshold
Bound state, found state – ATLAS ties the knot on top quark pair production at threshold Physics at the LHC often advances by pushing into regimes once thought unreachable. One such frontier is the precise study of top-anti-top quark pairs (tt̄) near the production threshold, where subtle quantum effects may leave their imprint. A few
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ALICE explores the quark–gluon plasma with light-ion collisions
ALICE explores the quark–gluon plasma with light-ion collisions In July 2025, the ALICE experiment took part in the LHC’s first-ever light-ion campaign, colliding oxygen–oxygen (O–O) and neon–neon (Ne–Ne) nuclei at a centre-of-mass energy of 5.36 TeV per nucleon pair. The short but intense runs offered a rare opportunity to explore the transition between ordinary hadronic
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TEST-FCCPH-29062025
TEST-FCCPH-29062025 FCC Week 2025: Advancing the Frontier of Particle Physics As the FCC Week 2025 concluded in Vienna, Jan Eysermans delivered a summary of the physics prospects of the Future Circular Collider (FCC) integrated programme. The closing physics summary showcased the powerful case for the FCC-ee and FCC-hh as a unified strategy to deepen our
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Next-Generation CO₂ Cooling Systems Powering the Future of ATLAS and CMS
Next-Generation CO₂ Cooling Systems Powering the Future of ATLAS and CMS Four CO2 cooling plants and accumulators in the service cavern of CMS in May 2025. (Photo by Jérôme Daguin) During recent shutdown periods, CERN engineers and technicians — in collaboration with the ATLAS and CMS teams — began installing the first units of next-generation
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Calorimetry and light-based detectors for future experiments
Calorimetry and light-based detectors for future experiments The strategic R&D programme on technologies for future experiments by the CERN EP department is currently in its second phase from 2024 until 2028. Within this effort, Work Package (WP) 3 focusses on the development of calorimetry and light-based detectors. Particle identification Several detectors use light to detect
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A Day of Innovation: EP R&D 2025 in Focus
A Day of Innovation: EP R&D 2025 in Focus May 7th 2025, 8:15 AM. Many colleagues from all EP groups are gathering in front of the main auditorium. Colourful posters are being exhibited in the lobby. People who don’t see each other often profit from the occasion to chat a bit. It is the 2025
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LHCb Upgrade II Scoping Document
LHCb Upgrade II Scoping Document CERN Research Board backs “Middle” scope for LHCb Upgrade II With the CERN Research Board’s endorsement on 14 April 2025, the LHCb Upgrade II Scoping Document has cleared its critical design-scope review, moving the project from proposal to implementation. The Board’s recommendation that the collaboration pursue the Middle configuration—one of
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The ATLAS Inner Tracker Integration at CERN
The ATLAS Inner Tracker Integration at CERN Introduction The ATLAS ITk (Inner TracKer) is a new all-silicon tracker that will replace the existing ATLAS Inner Detector (ID) to meet the requirements imposed by the high-radiation and high-hit occupancy environments of the HL-LHC (High-Luminosity LHC). The ITk consists of multiple layers of silicon detectors arranged into
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A word from the EP Deputy Department Head – June 2025
A word from the EP Deputy Department Head – June 2025 As I write this editorial, the 2025 experimental programme is in full swing, and the high temperatures are a reminder that summer is here. Many of you will be extremely busy with the ongoing data-taking, producing new results for the summer physics conferences, or
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Shaping Detector Innovation: Highlights from CERN’s EP-DT Group Annual Report
Shaping Detector Innovation: Highlights from CERN’s EP-DT Group Annual Report The Detector Technologies (EP-DT) group has played a vital role in 2024 in advancing experimental capabilities across CERN’s LHC and non-LHC programmes. As outlined in the group’s recently published annual report, their contributions span from detector construction and integration to critical R&D on enabling technologies,