In October, the Circular Electron–Positron Collider (CEPC) study group completed its full suite of technical design reports, ...

Vivian Poulin asks if the tension between a direct measurement of the Hubble constant and constraints from the early universe could be resolved by new physics. On large scales the dominant motion of ...

With a new measurement imminent, the Courier explores the experimental results and theoretical calculations used to predict ‘muon g-2’ – one of particle physics’ most precisely known quantities and ...

Quantum Drama, by Jim Baggott and John L Heilbron, Oxford University Press One hundred years of insights Jim Baggott and John Heilbron don’t neglect later quantum pioneers like John Bell (pictured).

Marek Karliner and Jonathan Rosner ask what makes tetraquarks and pentaquarks tick, revealing them to be at times exotic compact states, at times hadronic molecules and at times both – with much still ...

Patrick Koppenburg and Marco Pappagallo survey the 23 exotic hadrons discovered at the LHC so far. Twenty-three exotic states Five pentaquarks and 18 tetraquarks have been discovered so far at the LHC ...

Early-career researchers tell the Courier what they think is the key strategic issue for the future of high-energy physics. Accelerating into the future Seventy years after construction began on ...

Geared for discovery more so than delicacy, the LHC is defying expectations by rivalling lepton colliders for precision. Guillelmo Gomez-Ceballos and Jan Kretzschmar identify five measurements of the ...

On-chip acceleration pioneers Robert Byer, Joel England, Peter Hommelhoff and Roy Shiloh report on progress to miniaturise accelerators from centimetres to microns. Accelerators on a chip Forty long ...

The DUNE experiment is taking shape deep in the same mine where physicists got the first hint that something was amiss with the neutrino. In 1968, deep underground in the Homestake gold mine in South ...

André de Gouvêa explains why neutrino masses imply the existence of new fundamental fields. Misfits Massive neutrinos are not part of the Standard Model. Credit: Symmetry After all these years, ...