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Photo of David Silver standing in front of a podium. He's dressed informally, in a black t-shirt and hoodie

The pros and cons of reinforcement learning in physical science

Relive the two decades when physicists basked in the afterglow of the Standard Model

Robert P Crease previews the 4th International Symposium on the History of Particle Physics

Top quarks embrace in quasi-bound toponium

Observation provides new insights into the heaviest subatomic particle

Particle and nuclear news

General Fusion lays off staff due to ‘unexpected and urgent financing constraints’

CERN releases plans for the ‘most extraordinary instrument ever built’

China’s Experimental Advanced Superconducting Tokamak smashes fusion confinement record

Research headlines

A rainbow-coloured row of blocks labelled with the names of the actinide series of chemical elements. Ball-and-stick models of water molecules rain down around them.

Making molecules with superheavy elements could shake up the periodic table

New atom-by-atom technique demonstrated for the first time with nobelium might ensure that elements at the bottom of the table are grouped correctly

Electrochemical loading boosts deuterium fusion in a palladium target

Benchtop accelerator links electrochemistry to fusion science

Illustration of the mirror nuclei oxygen-22 and silicon-22 on weighing scales. Both nuclei contain a greyish "core" labelled oxygen-16. In oxygen-22, this core is surrounded by a thin blue shell containing an additional six blue neutrons. In silicon-22, the core is surrounded by a thicker red shell containing an additional six red protons.

Physicists discover a new proton magic number

Measurements could improve our understanding of the strong nuclear force and the formation of elements

Illustration showing the position and size of the CONUS+ detector

Elusive scattering of antineutrinos from nuclei spotted using small detector

Interaction could lead to experiments that challenge the Standard Model

Photo of Experimental Hall A at Jefferson Lab

Tritium and helium targets shed light on three-nucleon interactions

Study of small nuclei could help us understand neutron stars

Modelled tritium concentration in seawater

Global ocean simulations examine tritium release from Fukushima

Model reveals that tritium in treated water discharged from the Fukushima Daiichi reactor has negligible impact on tritium concentration in the ocean

Physics World Particle & Nuclear Briefing

From the Higgs boson 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.

Explore more in particle and nuclear physics

Photo of a physicist working at the BASE experiment

Quantum control of individual antiprotons puts the Standard Model to the test

Experiment could help reveal why there is so little antimatter in the universe

Screenshot from a pixel-art computer game puzzle based on particle physics

Exographer: a scientific odyssey in pixel form

Andrew Glester reviews the computer game Exographer developed by SciFunGames

Lee Packer: ‘There’s no fundamental physical reason why fusion energy won’t work’

Lee Packer delivered the Cockcroft Walton lecture series across three institutions in India earlier this year

Illustration of how CP violation was detected by LHCb

CP violation in baryons is seen for the first time at CERN

LHCb result is consistent with the Standard Model, but could provide a path to new physics

High-quality muon beam holds promise for future collider

Record-breaking 100 keV beam could enable next-generation experiments

Muon g-2 achieves record precision, but theoretical tensions remain

Any discovery of new physics is on hold, at least for now

Photo of Sara Alderweireldt at CERN. She's standing on a lawn under bright blue skies with a section of beamline behind her. Lettering on the beamline reads "accelerating science" in English and French

Inside ATLAS: Sara Alderweireldt explains how the CERN experiment homes in on new physics

This podcast also looks at the high-luminosity upgrade of the Large Hadron Collider

Illustration of photon–photon scattering in the laboratory

Quantum vacuum fluctuations illuminated by new computational technique

Simulations could connect laser experiments to quantum electrodynamics

Photo of the GlueX spectrometer at Jefferson Lab

Photon collisions provide a glimpse of gluons inside nuclei

Photoproduction of J/psi mesons reveals new surprises

Micronozzle could give laser-driven particle accelerators a boost

Simulations suggest that new design could deliver gigaelectronvolt protons

Conflicting measurements of helium’s charge radius may be reconciled by new calculations

Theorists move quickly to explain discrepancy

**Simulation of capsule implosions during laser fusion wins Plasma Physics and Controlled Fusion Outstanding Paper Prize**

The work is an important step to understanding the physics at the heart of inertial confinement fusion

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