Particle and nuclear Archives – Page 5 of 156

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Missing decay at BESIII points to long-sought glueball

Antineutrino detector could monitor spent nuclear fuel for clandestine activity

Sensitive new measurements suggest that monitoring can continue even when reactors are offline

Two scientists in front of a white board covered with diagrams

No show again for mirror neutrons

For now, the existence of a mirror universe cannot be confirmed, say physicists at the PSI

Particle and nuclear news

Researchers propose ‘economic Q’ metric for judging fusion power plant viability

Private investment in fusion firms jumps by $4.5bn

CERN says Large Hadron Collider has ‘exceeded every expectation’ as it shuts down ahead of major upgrade

Research headlines

Protons and neutrons are more than just groups of three quarks

Comparison between theoretical models and experimental data favours alternative “baryon junctions” picture

Set of two diagrams. The first shows a particle containing three different-coloured quarks connected by a y-shaped link flying through space and colliding with something. The second diagram shows the three quarks continuing to fly through space while the proton and its y-shaped link is stopped.

Nuclear fusion persists at ultralow energies inside metal foils

Experiment suggests the environment matters when deuterium fuses

Photo of Jeremy Munday and Micah Karahadian

Cold radioactive molecules offer a tabletop route to new physics

Nuclear symmetry violations could show up in molecules containing pear-shaped radium nuclei

Image showing a pear-shaped grid of glowing blue lines with a heatmap-type blob of red, yellow and green suspended inside it. The pear hovers over a copper-coloured box.

Matter-antimatter symmetry measurement sets new precision record

CERN’s ALPHA collaboration pins down the ground-state hyperfine splitting of antihydrogen within four parts per million

Photo of eight members of the ALPHA collaboration in the lab at CERN. They're all wearing white hard hats and are casually dressed in jeans and t-shirts. A ladder leans against an experimental apparatus in the foreground and a tank of liquid helium is visible in the background, as are lots of cables.

Antineutrino detectors could spot signs that a fusion reactor is producing weapons-grade plutonium

Non-intrusive technique could enable round-the-clock, offsite monitoring of reactor operations

Diagram of a tokamak fusion reactor emitting electron antineutrinos. A box outside the reactor represents a detector, and two people are shown for scale (they are much smaller than the reactor and a little bigger than the detector). The whole diagram is drawn in shades of grey and black.

‘Superallowed’ alpha decay seen for the first time

Observations could help us better understand how alpha particles form inside atomic nuclei

Physics World Particle & Nuclear Briefing

From new developments at CERN to nuclear reactions inside stars, who doesn’t love particle and nuclear physics? There’s so much exciting work going on in both fields, which is why we’re bringing you this new free-to-read digital issue of the Physics World Particle & Nuclear Briefing.

Glowing Atomic Structure on Dark Background Representing Quantum Physics and Energy

Explore more in particle and nuclear physics

Quarks and qubits: how quantum computing could transform particle physics

This podcast also explores the intersection of general relativity and quantum information

AI’s black box problem: discovering physics we don’t understand

Claire Malone wonders what happens if AI produces answers we can’t – or don’t – understand

Cartoon illustration of a man trying to understand an AI robot's output

Measuring the invisible: how internal dosimetry shapes radiation protection

Assessing the impact of radiation exposure is crucial for protecting the health of workers, but expert judgement is needed to interpret the results

Safety first: Internal Dosimetry is the practice of estimating intakes and risk from occupational exposures to radioactive materials (Credit: iStock/??)

Mass spectrometry delivers fusion insights

A quadrupole mass analyser has been designed for fusion research

nuclear fusion reactor tokamak concept background, 3d rendering

People
News

Belgian Nobel-prize-winning theoretical physicist François Englert dies aged 93

Englert shared the 2013 Nobel Prize for Physics with Peter Higgs

François Englert standing by a blackboard

HALHF is going all in on plasma acceleration

An experimental milestone in plasma acceleration at the UK’s CLARA test facility

Ask me anything: Mary Bishai – ‘For a self-professed nerd like me, doing big science is heaven’

Mary Bishai is an experimental neutrino physicist at Brookhaven National Laboratory in the US

Nuclear shells govern close proton–neutron partnerships

Electron scattering experiment gives a surprising result

Illustration of how close pairing was studied

**Research on magnetic plasma confinement wins Plasma Physics and Controlled Fusion Outstanding Paper Prize**

The work is an important step to understanding the physics of “negative triangularity”

Tiny droplets of primordial soup appear in oxygen collisions

Quark–gluon plasma could be created by light nuclei

Muon g−2 calculation sets precision record and backs the Standard Model

Lattice QCD puts new physics to rest

Word wave puzzle no.4

Can you work out the word in this puzzle?

Physicists confirm proton radius is smaller than we thought

More precise measurements agree with an initially controversial 2010 result

Photo of the experimental equipment used to measure the proton charge radius. There's a vacuum system at the centre of the photo, but it's almost completely hidden under cables, wires, monitors and other instruments.

Physicists spot signs of an atom-like system bound by the strong force alone

Observations of a nucleus paired with a neutral meson could provide new insights into the theory of quantum chromodynamics

Photo of 28 researchers in the collaboration standing on the experimental floor at GSI/FAIR. The researchers are all dressed casually and a set of metal stairs and other equipment are visible in the background. The photo is taken from above and everyone is looking up at the camera.

Officials hail ‘major milestone’ for US Deep Underground Neutrino Experiment

When complete in 2031, DUNE-LBNF will study the properties of neutrinos

New W boson mass measurement agrees with Standard Model predictions

Result described as a "huge relief" after previous measurements suggested a large discrepancy

Photo of the CMS detector, which resembles a multicoloured wheel held up by green steel beams. A yellow lift vehicle is visible underneath it.

Near-oxymoronic requirements: the materials challenges of fusion energy

Jacob John of the UK Atomic Energy Authority is our podcast guest

Gap in neutrino energy spectrum raises questions about cosmic environments

New analyses by the IceCube observatory could help scientists understand where neutrinos form and what is producing them

A photo of a detector buried deep in solid ice, connected to the surface by a cable

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Particle and nuclear | Workshop 26th Hellenic School and Workshops on Elementary Particle Physics and Gravity 19 April — 21 September 2026 | Corfu, Greece
Particle and nuclear | Symposium World Nuclear Symposium 2026 9—11 September 2026 | London, UK
Particle and nuclear | Exhibition Fusion Energy 2026 6—7 October 2026 | Boston, US

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