One of the greatest mysteries in physics is why our Universe is made almost entirely of the normal matter that forms us and everything we touch. Every matter particle has a corresponding antiparticle ...

Il y a 70 ans aujourd’hui, Clyde Cowan, Frederick Reines et leurs collègues concluaient un quart de siècle de recherches en publiant dans la revue Science un article annonçant qu’ils avaient détecté ...

As outlined in our June article, CERN has a coordination structure in place to manage and oversee concurrent activities, including for the demanding LS3 period ahead. Clearly defined activities, ...

As of mid-2026, the accelerator complex and experimental facilities at CERN are undergoing major maintenance and upgrade work. This phase, known as “Long Shutdown 3” or “LS3”, is expected to last up ...

Today, the Large Hadron Collider (LHC), the world’s most powerful particle accelerator, comes to the end of an extraordinary chapter in its scientific journey. Following its final physics run, the ...

With this award, the ATLAS and CMS Collaborations recognise the crucial role Hamamatsu Photonics K.K. has played in the development and production of advanced technologies, as well as the ongoing, ...

Artist’s impression of the new particle with two charm quarks and one strange quark (Image: Daniel Dominguez/CERN) The LHCb Collaboration has found a new particle consisting of one strange quark and ...

CERN’s science festival, Future Explorers, will celebrate exploration in all its forms. CERN invites the public to discover how curiosity, collaboration and daring help push the boundaries of ...

Some of the last LHC collisions recorded by the ALICE, ATLAS, CMS and LHCb experiments in 2026 (Left to right, top to bottom). (Image: CERN) In the meantime, it’s time to take stock of the three ...

The CMS experiment uses its largest sample of beauty mesons to date to perform a high-precision test of subtle differences between matter and antimatter ...

A warm welcome to the summer-student class of 2026! We’re glad that you made it to CERN! We offer a packed agenda for the next two months: challenging lectures; interesting projects to tackle with ...

The ALPHA Collaboration has increased the precision of its measurement of the ground-state hyperfine splitting of antihydrogen by two orders of magnitude In this study, the ALPHA Collaboration ...