Read article 'Charming energy–energy correlators'
Charming energy–energy correlators
The ALICE collaboration has measured energy–energy correlators of charm-quark jets for the first time, observing the expected suppression at small angles.
Read article 'Charming energy–energy correlators'
Read article 'Ultra-peripheral physics in the ultraperiphery'
Ultra-peripheral physics in the ultraperiphery
In June 2025, physicists met at Saariselkä, Finland, to discuss recent progress in the field of ultra-peripheral collisions.
Read article 'A new probe of radial flow'
A new probe of radial flow
The ATLAS and ALICE collaborations have announced the first results of a new way to measure the “radial flow” of quark–gluon plasma.
Read article 'STAR hunts QCD critical point'
STAR hunts QCD critical point
The STAR collaboration at BNL has narrowed the search for a long-sought-after “critical point” in the still largely conjectural phase diagram of QCD.
Read article 'Hadrons in Porto Alegre'
Hadrons in Porto Alegre
The 16th International Workshop on Hadron Physics welcomed 135 physicists to the Federal University of Rio Grande do Sul in Porto Alegre, Brazil.
Read article 'Clean di-pions reveal vector mesons'
Clean di-pions reveal vector mesons
LHCb has isolated a precisely measured, high-statistics sample of di-pions.
Read article 'Colour information diffuses in Frankfurt'
Colour information diffuses in Frankfurt
The 31st Quark Matter conference was the best attended in the series’ history, with more than 1000 participants.
Read article 'ALICE measures a rare Ω baryon'
ALICE measures a rare Ω baryon
These results will improve the theoretical description of excited baryons.
Read article 'CMS observes top–antitop excess'
CMS observes top–antitop excess
The signal could be caused by a quasi-bound top–antitop meson commonly called "toponium".
Read article 'Do muons wobble faster than expected?'
Do muons wobble faster than expected?
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 qu...
