CERN Community: take part in the 2024 CERN end of year crossword!

ACROSS

1. In September, the ATLAS and CMS experiments released results on what weird quantum phenomenon?

4. The CMS experiment released the most precise mass measurement of a Standard Model particle to date on 17 September. What was the name of the particle?

6. At the end of November, Arts at CERN launched a new arts residency programme in collaboration with the Republic and Canton of Geneva and the City of Geneva. What is the name of this programme?

7. CERN Science Gateway is among the "100 greatest places in the world", according to which famous American magazine?

9. What do you get if you unscramble the shaded letters?

12. Which Swiss fitness initiative awarded the CERN community the prize for the best participation rate in its category?

13. This prominent scientist died earlier this year at the age of 94.

17. What is the name of the first South American country to join CERN as an Associate Member State (on 22 March 2024)?

20. Which subproject of the antimatter factory rehearsed the transportation of antimatter in October?

21. Fill in the blank: the CERN alumni network brought more than 600 people together in February for a large networking event and reunion, known as its ____ Collisions.

22. In February, the AEgIS experiment paved the way for a new set of antimatter studies by cooling positronium with what type of light?

23. In a recent result, which CERN experiment revealed a new source of atmospheric aerosol particles that could help scientists to refine climate models?

DOWN

2. To celebrate CERN70, CERN exhibitions appeared in multiple locations around Geneva, including in which major city amenity?

3. Estonia became a CERN Member State on 30 August, becoming the first Baltic country to join CERN as a full Member State. CERN now has how many Member States?

5. What is the acronym for the newly reopened former main reception, now serving the CERN community?

8. Fill in the blank: CERN's next Director-General, who was selected by the CERN Council in November and who is set to start his mandate on 1 January 2026, is named ____ Thomson.

10. Using collisions between lead nuclei at the LHC, the ALICE collaboration measured an interference pattern similar to which physicist's famous double-slit experiment?

11. Throughout the year, the LHCb experiment has conducted studies on a phenomenon that could help explain the asymmetry between matter and antimatter in the Universe. What is this phenomenon?

13. Spanning more than 6000 square metres, the new CERN data centre was inaugurated in February on which of the CERN sites?

14. Fill in the blank: the CERN and Society Foundation celebrated its ___ year anniversary in 2024.

15. Fill in the blank: performers at the CERN70 community event in September included "Les _____ Cernettes".

16. CERN has signed three power purchase agreements to provide electricity from what type of renewable source from 2027?

18. Launched in January 2024, the project HORIZON-ZEN aims to ensure that a tool developed by CERN makes EU research data as findable, accessible, interoperable and reusable as possible. What is this tool called?

19. In June, which LHC experiment released the results of its most sensitive search yet for di-Higgs production using data from Run 2?