The long-awaited day has arrived, in spectacular fashion. The LHC has declared “Stable beams with ions”, and ALICE, ATLAS and CMS are all seeing events, and sharing their beautiful event displays with the world.
It is enormously satisfying to see the field of relativistic heavy ion physics take this tremendous (large) step on the energy frontier. Congratulations and kudos to all who have worked for decades to make this happen. Surely extraordinary discoveries await.
Update: There is now a press release from CERN with useful links to various event displays.