Tag: RICH
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In discussion with Alan Guth
Alan Guth reflects on the origins of inflationary cosmology, the uncertainty surrounding its earliest models and the observations that could shape its future. He also discusses eternal inflation, the measure problem and the enduring connections between cosmology and particle physics.
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A radioactive crossroads: n_TOF measurement validates a key reaction in the molybdenum-94 puzzle
The first experimental determination of neutron capture by niobium-94 at energies relevant to stellar nucleosynthesis confirms the scale of earlier theoretical predictions, rules out this reaction as the source of a longstanding discrepancy and strengthens our understanding of molybdenum production in ageing stars.
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ISOLTRAP measures cadmium isotope masses for the first time, probing a key nuclear shell gap
With only about 40 detected ions, ISOLTRAP has measured the mass of cadmium-96 for the first time. Together with improved measurements of cadmium-97 and cadmium-98, the results shed light on nuclear shell structure near the doubly magic nucleus tin-100 and provide new benchmarks for nuclear theory.
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From Run 3 to the next generation: following the transformation of the LHC experiments
From dismantling detector components to installing new technologies, the transition from Run 3 to the next generation of LHC experiments is a major scientific and engineering undertaking. We follow the teams behind this transformation, exploring the challenges inside the experimental caverns and the expertise across CERN’s EP Department that helps turn ambitious upgrade plans into…
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New Staff Members and Fellows – Autumn 2026
New Staff Members and Fellows – Autumn 2026 Christian Appelt Hello, I’m Christian. I’ve joined EP-ATL-SO as a Research Fellow. I completed professional training as an electronics technician, worked in industry for 5 years, and studied electrical engineering (BEng) and physics (BSc, MSc, PhD). I’ve worked at several research institutes; in ATLAS, I’ve been involved in and am leading long-lived particle searches, the production
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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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LHCb completes a long-awaited family of doubly charmed baryons
LHCb completes a long-awaited family of doubly charmed baryons More than sixty years ago, particle physics was facing a problem of abundance. New subatomic particles were appearing in experiments, but there was not yet a clear organising principle to explain their relationships. In the early 1960s, Murray Gell-Mann and Yuval Ne’eman independently proposed the “Eightfold
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FASER opens new windows on dark sectors and TeV neutrino physics
FASER opens new windows on dark sectors and TeV neutrino physics The FASER experiment has presented a series of new results that highlight the growing breadth of its physics programme at the LHC. These include a search for dark photons with the main FASER detector, a first search for neutrino-induced charm production with FASERν, and
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ATLAS scales up AI for jet physics and reveals flavour-tagging scaling laws
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 extract physics results. It’s for this reason that
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PUMA – Antiprotons as a precision probe for the tail of nuclear density
PUMA – Antiprotons as a precision probe for the tail of nuclear density Understanding the nuclear structure of atomic nuclei away from the valley of stability remains one of the central challenges of nuclear physics and astrophysics. In particular, the dilute outer regions of neutron-rich nuclei can exhibit phenomena such as neutron halos and neutron