The Standard Model (SM) is a triumph of modern physics, with unprecedented success in explaining the subatomic world. The Higgs boson, discovered in 2012, was the capstone of this amazing theory, yet this newly known […]

It is well known that the top quark, the heaviest known elementary particle, plays an important role in electroweak-symmetry breaking, and is also one of the most promising particles to be investigated in the search […]

This year’s Nobel Prize in Physics was shared between three researchers for groundbreaking inventions in laser physics. Half the prize went to Arthur Ashkin of Bell Laboratories in the US for his work on optical […]

CHARM, a unique facility at CERN to test electronics in complex radiation environments, has been used to test its first full space system: a micro-satellite called CELESTA, developed by CERN in collaboration with the University […]

In late August, a beam of electrons successfully circulated for the first time through a new particle accelerator at Fermilab in the US. The Integrable Optics Test Accelerator (IOTA), a 40 m-circumference storage ring, is one […]

The world’s largest liquid-argon neutrino detector has recorded its first particle tracks in tests at CERN, marking an important step towards the international Deep Underground Neutrino Experiment (DUNE) under preparation in the US. The enormous […]

Although the quark model of hadrons is highly successful in describing how the quarks combine to form baryons and mesons, the internal mechanisms governing the dynamics of the strong force that binds quarks inside those […]

The AWAKE experiment at CERN has passed an important milestone towards compact, high-energy accelerators for applications in future high-energy physics experiments. Reporting in Nature on 29 August, the 18 institute-strong international collaboration has for the first […]

The ALPHA experiment at CERN’s Antiproton Decelerator (AD) has made yet another seminal measurement of the properties of antiatoms. Following its determination last year of both the ground-state hyperfine and the 1S–2S transitions in antihydrogen, […]

The European Union (EU) has committed €17 million to help bring a total of 170 breakthrough detection and imaging ideas to market. Led by CERN and funded by the EU’s Horizon 2020 programme, the ATTRACT initiative […]

The US National Science Foundation (NSF) has launched a $25 million effort to help tackle the torrent of data from the High-Luminosity Large Hadron Collider (HL-LHC). The Institute for Research and Innovation in Software for High-Energy […]

On 12 September, the Japanese government granted seed funding towards the construction of the Hyper-Kamiokande experiment, a next-generation detector for the study of neutrinos. Japan’s Ministry of Education, Culture, Sports, Science and Technology (MEXT) allocated […]

The European Committee for Future Accelerators (ECFA) has created a working group to examine the recognition of individual achievements in large scientific collaborations. Based on feedback from an initial survey of the leaders of 29 […]

A new technology has enabled the STAR collaboration at Brookhaven National Laboratory’s Relativistic Heavy-Ion Collider (RHIC) to greatly expand its ability to reconstruct short-lived charm hadron decays, even in collisions containing thousands of tracks. A […]

One of the main objectives of the ALICE physics programme for future LHC runs is the precise measurement of the e+e− (dielectron) invariant-mass continuum produced in heavy-ion collisions. In contrast to strongly interacting hadronic probes, […]

Ten years ago, the first in a series of annual meetings devoted to the theoretical and experimental understanding of massive hadronically decaying particles with high transverse momenta took place at SLAC. These “BOOST” workshops coincided […]

This year, the LHCb collaboration reached an important milestone in its fixed-target physics programme, publishing two key results on the production rates of particles in proton–ion collisions: measurements of the cross section of antiprotons that […]

The observation of the Higgs-boson decay to bottom quark–antiquark (bb̅) by the CMS experiment is a seminal achievement that sheds light on one of the key missing pieces of the Higgs sector of the Standard […]

Première mondiale pour l’accélération d’électrons par AWAKE • L’expérience ALPHA fait passer l’antihydrogène au niveau supérieur • Détecteurs et imagerie de pointe : l’UE lance un appel à projets • Un projet américain pour développer le traitement des données du HL-LHC • Le détecteur Hyper-K en construction dès 2020 • Quelle reconnaissance individuelle dans les grandes collaborations ? • Du silicium ultrafin pour l’imagerie de STAR • Premiers résultats sur les diélectrons de masse faible • Sous-structures des jets : dix ans d’avancées • LHCb : la physique à cible fixe en mode « collisions » • La désintégration du boson de Higgs en quarks b observée • L’énigme d’une ancienne explosion stellaire peut-être résolue

Since the discovery of high-energy extragalactic neutrinos by the IceCube collaboration in 2013, the hunt for the sources of such extreme cosmic events has been a major focus of neutrino astronomy. Now, in a multi-messenger […]

Dark energy and dark matter together make up about 95% of the universe, yet we do not know the origin, constituents, or dynamics (apart from gravity) of these substances. Various extensions of the Standard Model […]

Since the beginning of the LHC physics programme in 2010, the LHCb collaboration has been working to drive down the uncertainty on the least-precisely measured angle of the unitarity triangle, γ. The unitarity triangle exists […]

The ALICE collaboration has released a new measurement of the production of D0, D+, D*+ and Ds+ mesons, which contain a charm quark, in lead–lead (PbPb) collisions at a centre-of-mass energy per nucleon pair (√sNN) […]

New-Zealand company MARS Bioimaging Ltd has used technology developed at CERN to perform the first colour 3D X-ray of a human body, offering more accurate medical diagnoses. Father and son researchers Phil and Anthony Butler […]

A new experiment at Fermilab in the US, designed to make the most precise measurement of the muon’s magnetic moment, has completed its first physics data-taking campaign, showing promising results. Experiment E989 is a reincarnation […]

On 28 June, the US Department of Energy and the Italian Embassy, on behalf of the Italian Ministry of Education, Universities and Research, signed a collaboration agreement concerning the international Short Baseline Neutrino (SBN) programme […]

The Brout–Englert–Higgs mechanism solves the apparent theoretical impossibility of allowing weak vector bosons (the W and Z) to acquire mass. The discovery of the Higgs boson in 2012 via its decays into photons, Z and […]

During its closed session on 14 June, the CERN Council decided, by consensus, the venues and dates for two key meetings concerning the upcoming update of the European strategy for particle physics. An open symposium, […]