Measurements of b-hadron decays with neutrinos in the final state are one of the best ways to understand how quarks decay, and in particular how they couple to leptons. With recent results from LHCb, BaBar […]

Two new experiments at CERN, ALPHA-g and GBAR, have begun campaigns to check whether antimatter falls under gravity at the same rate as matter. The gravitational behaviour of antimatter has never been directly probed, though […]

Recent results from the LHCb and other experiments appear to challenge the assumption of lepton-flavour universality. To explore further, the CMS collaboration has recently conducted a new search probing one of the theories that attempts […]

The first measurement of Λc+-baryon production in lead–lead (Pb–Pb) collisions at an energy of 5.02 TeV per colliding nucleon pair was presented by the ALICE collaboration at the International Conference on Hard and Electromagnetic Probes of […]

High-luminosity collisions of electrons and positrons at the KEKB accelerator in Japan have established the existence of a new baryon with strangeness S = –2, shedding light on the structure of doubly-strange hyperon resonances. In a preprint […]

The exploration of W- and Z-boson interactions at the energy frontier probes the heart of the Brout–Englert–Higgs mechanism. The cross-section of longitudinal weak-boson scattering would diverge, resulting in meaningless values, were it not for the […]

The Large Hadron Collider’s 2018 proton physics run came to an end on 24 October, having accumulated an impressive dataset. The integrated luminosity delivered to both the ATLAS and CMS experiments reached an average of around […]

An international team has made an advance towards more compact particle accelerators, demonstrating that beams can be focused via a technique called active plasma lensing without reducing the beam quality. Building smaller particle accelerators has […]

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