Tag: LHC
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Four of a kind: exploring quadruple-Higgs boson production at the HL-LHC
Four Higgs bosons from a single LHC collision would be a remarkable sight. The Standard Model puts an observation out of reach at the High-Luminosity LHC. Yet events containing four Higgs bosons could still matter for today’s experimental search strategies—and become much more abundant if new scalar particles exist.
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Taking ATLAS apart to build its future
In the first weeks of Long Shutdown 3, ATLAS entered a decisive new phase. Over the next four years, the collaboration will dismantle major parts of the detector and install new tracking, timing, trigger and infrastructure systems for the High-Luminosity LHC. Its technical coordination team reveals the intricate planning, tension and unexpected joy behind this…
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A Hundred Gigabits per Fibre: Silicon Photonics Links for the Detectors of Tomorrow
The High-Speed Links Work Package (WP6) of the EP R&D programme is developing the radiation-tolerant, high-bandwidth optical links needed for future particle detectors. Combining custom ASICs, Silicon Photonics and FPGA-based back-end systems, the team is now moving towards integrated demonstrations in an experimental context.
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From beam dumps to missing energy: the SPS search for hidden particles
For more than four decades, CERN’s Super Proton Synchrotron has served as a testing ground for new ways to search for particles that interact only feebly with ordinary matter. In a recent lecture, NA64 co-spokesperson Paolo Crivelli traced the evolution of this programme – from the first beam-dump experiments to missing-energy and missing-momentum searches, precision…
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Key4hep: A software framework for future collider studies
Key4hep brings future-collider communities together around a shared software framework for detector design and physics studies. By integrating tools for event generation, simulation, reconstruction and analysis, it reduces duplication, facilitates comparisons and allows each project to adapt the software to its own detector and scientific goals.
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Designing for the unusual: LLP2026 and the lifetime frontier
LLP2026 brought around 80 theorists and experimentalists to Cambridge at a moment of transition for the lifetime frontier. From new searches using Run 3 LHC data and unconventional signatures to prototype detectors and new experimental concepts, the workshop showed how long-recognised blind spots are being turned into concrete experimental capabilities.
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Bundling Forces for Future Online Computing: Introducing the CDO Projec
Discover the Control Acquisition and Online Computing (CDO) Project, an initiative of the Experimental Physics Department that brings together diverse expertise, ideas and perspectives to strengthen collaboration across the community.
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New ATLAS and CMS searches narrow the gap for compressed higgsinos
New ATLAS and CMS searches narrow the gap for compressed higgsinos Supersymmetry plays a prominent role in the landscape of models that push beyond the Standard Model. Higgsinos, the supersymmetric partners of the Higgs boson, may help in addressing a number of unsolved puzzles, particularly if their masses are near the electroweak scale. Not only
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In discussion with John Ellis: The Higgs, Patience and Perseverance in Science
In discussion with John Ellis: The Higgs, Patience and Perseverance in Science by Panos Charitos For John Ellis, the history of the Higgs boson is not a neat, short story that begins with a theory paper and ends with a discovery announcement. It is a long intellectual adventure, beginning in superconductivity, moving through the construction
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The ISOLDE Improvement Programme
The ISOLDE Improvement Programme The ISOLDE Improvement Programme (IIP) brings together a series of upgrades and consolidation activities to maintain and further develop the ISOLDE facility. The programme includes projects addressing the accelerator infrastructure, beam production, and delivery systems, and experimental facilities, with the objective of improving operational flexibility, reliability, and long-term sustainability. Among the