Read article 'Hubble expansion discrepancy deepens'
Adam Riess from the Space Telescope Science Institute and colleagues have now made a more precise, direct measurement that reinforces the mismatch and could signal new physics.
Read article 'Violette Brisson 1934–2018'
Highly respected member of the French particle-physics community
Read article 'Radio-frequency maestro: Daniel Boussard 1937–2018'
Outstanding inventor and leader
Read article 'Call for input to European strategy update'
The European strategy for particle physics, which is due to be updated by May 2020, will guide the direction of the field to the mid-2020s and beyond.
Read article 'Oddball antics in proton–proton collisions'
The TOTEM collaboration at CERN has uncovered possible evidence for a subatomic three-gluon compound called an odderon, first predicted in 1973.
Read article 'Antiprotons to hit the road'
“This project might lead to the democratisation of the use of antimatter,” says project leader Alexandre Obertelli of TU Darmstadt.
Read article 'Taking top physics forward'
LHCb has now made its first measurement of top quark production using Run-2 data collected in proton–proton collisions at the energy of 13 TeV.
Read article 'ALICE puts limits on jet quenching in p–Pb collisions'
What are the essential requirements for the formation of a quark–gluon plasma? Do only the most violent, head-on lead–lead (Pb–Pb) interactions at the LHC provide such conditions?
Read article 'ATLAS illuminates the Higgs boson at 13 TeV'
The Higgs-to-two-photons decay played a crucial role in the discovery of the Higgs boson in 2012 owing to the excellent mass resolution and well-modelled backgrounds in this channel.
Read article 'CMS searches for third-generation leptoquarks'
Several phenomenological studies have suggested that anomalies in B decays could be explained by the existence of hypothetical new particles which couple to both leptons and quarks.
