With the story of quarkonia entering its final chapter, John Ellis shares personal recollections of five decades of discoveries and debates about the simplest composite object in QCD, whose history is ...

Big science requires long-term planning. In June, the US National Academies of Sciences, Engineering, and Medicine published an unprecedented 40-year strategy for US particle physics titled Elementary ...

Michael Riordan surveys the extraordinary events of 1964 – a year that witnessed the birth of the quark model, the invention of the Higgs mechanism, the discovery of CP violation and the first ...

Quasi-bound candidate An event display of an interaction consistent with the formation of toponium in the ATLAS detector. The final state includes two b jets (turquoise cones), a muon (red line) and ...

The most common neutrino interactions are the most difficult to detect. But thanks to advances in detector technology, coherent elastic neutrino–nucleus scattering (CEνNS) is emerging from behind ...

Square peg in a round hole Independent checks by the MEG II (left) and PADME (right) experiments report conflicting early indications on the true nature of the ATOMKI anomaly. Credit: INFN Almost a ...

Jon Rosner was a distinguished theoretician who made profound contributions to particle physics. Credit: J Rosner Jonathan L Rosner, a distinguished theoretical physicist and professor emeritus at the ...

Ivan Todorov made prominent contributions to the mathematical foundations of quantum field theory. Credit: The Todorov family Ivan Todorov, theoretical physicist of outstanding academic achievements ...

Robert Brandenberger argues that the unchanging cosmological constant of the ΛCDM model is theoretically problematic.

As the LHC surpasses one exabyte of stored data, Cristinel Diaconu and Ulrich Schwickerath call for new collaborations to ...

The CMS collaboration analysed Higgs-boson decays to two photons, setting limits on anomalous couplings that would violate CP ...

How are community inputs and debates shaping the ongoing update to the European strategy for particle physics? The Courier ...