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 ...

Louis Lyons traces the origins of the “five sigma” criterion in particle physics, and asks whether it remains a relevant marker for claiming the discovery of new physics.

Steven Weinberg reflects on winning the Breakthrough Prize, effective field theory, and the mass-hierarchy problem.

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, ...

Effective field theory (EFT) is now seen as the most fundamental and generic way to capture the physics of nature at all scales, with applications ranging from LHC physics to cosmology.

A new generation of accelerator and reactor experiments is opening an era of high-precision neutrino measurements.

Detecting and exploring a stochastic background of gravitational waves predicted to pervade the universe potentially opens a window on the extreme physics of the very early universe. Azadeh Maleknejad ...

The superconducting-link system for the HL-LHC is a shining example of how accelerator technology drives innovation with a wider impact on society, writes Amalia Ballarino.

Oliver James of DNEG, which produced the striking black hole in the film Interstellar, describes the science behind visual effects and the challenges in this fast-growing industry. Gargantua A variant ...

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 ...

The LHC’s physics programme has transformed our understanding of elementary particles, writes Michelangelo Mangano.

The ALICE collaboration is charting a course to an exciting heavy-ion physics programme for Runs 5 and 6 at the High-Luminosity LHC.