Tag: September – December 2025
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MUonE: A new path to hadronic vacuum polarization and the running of α
MUonE: A new path to hadronic vacuum polarization and the running of α The MUonE Collaboration [1] is making excellent progress towards developing a final proposal for an experiment that will measure the running of the electromagnetic coupling (alpha) by mapping out the differential cross section for muon–electron elastic scattering. The effective coupling strength increases
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European Strategy update reaches key milestone
European Strategy update reaches key milestone At its 225th session on 12 December 2025, the CERN Council received the recommendations for the update of the European Strategy for Particle Physics (ESPP), marking a major milestone in the process of defining a common vision for the future of the field. The recommendations will now be reviewed
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Frank Wilczek in Conversation: The Beauty of Fundamental Physics
Frank Wilczek in Conversation: The Beauty of Fundamental Physics Photo Cretis: Michael Clark In this wide-ranging interview, Nobel Prize–winning physicist Frank Wilczek reflects on the discoveries that shaped his career and the ideas that continue to orient his work. He recalls his collaboration with David Gross and the emergence of quantum chromodynamics; he turns to
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New Staff Members and Fellows
New Staff Members and Fellows Lauren Conway Hello! I am Lauren, and I’m very pleased to have recently joined the ATLAS Secretariat as an Administrative Assistant. I can already tell that the Secretariat is a very special place to work and I am very grateful for the warm welcome I have received from the whole
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A word from the EP Department Head – December 2025
A word from the EP Department Head – December 2025 Dear colleagues in EP, I hope this message finds you all well. You have opened the last EP Newsletter of this year. At the same time, this is the last newsletter which appears under the auspices of the present EP management. After ten years serving
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FoCal Moves Toward Construction After a Successful Beam Test
FoCal Moves Toward Construction After a Successful Beam Test Introduction Our recent beam test campaign for the ALICE Forward Calorimeter (FoCal) marked an important turning point for the project. After years of development toward a highly granular forward calorimeter, FoCal has now demonstrated the performance and maturity required to move confidently into construction. The tests
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Sympathetic Cooling Opens a New Era for Antihydrogen at CERN
Sympathetic Cooling Opens a New Era for Antihydrogen at CERN A major milestone has been reached at CERN’s Antimatter Factory. Using an innovative technique to cool positrons with laser-cooled beryllium ions, the ALPHA collaboration has increased the rate of antihydrogen production by a factor of eight. The advance, reported in Nature Communications, has transformed the
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Quantum Science and Technologies and High-Energy Physics
Quantum Science and Technologies and High-Energy Physics Trapped ions: A quantum simulator at the University of Innsbruck. Credit: C Lackner/Innsbruck On 27–28 October 2025, CERN hosted the Symposium on Quantum Science and Technologies and High-Energy Physics (HEP), co-organised through the CERN Quantum Technology Initiative (QTI) (https://indico.cern.ch/event/1565747/). The event brought together experts from quantum information science,
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AMBER — En route to measure the proton radius
AMBER — En route to measure the proton radius After months of excitement and almost continuous, frenetic activity since August, AMBER’s vast experimental hall — more than 10 m high and stretching over 60 m from the upstream collimators to the far wall — now feels unusually quiet and solitary. Only a few days ago,
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Dark Showers at the LHC: from benchmarks to Run-3 readiness
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, unconventional final states. These scenarios naturally arise in models where dark matter interacts