Teachers and Students

This is the dawn of an exciting age of new discovery in the study of elementary particles and their interactions. The current theoretical framework of the fundamental nature of matter, known as the Standard Model, explains much, but leaves many unanswered questions. What is dark matter? What happened to antimatter? Are there extra dimensions of spacetime? Are there new symmetries of nature? Are there new, as yet unobserved, forces? What is responsible for mass? The Large Hadron Collider (LHC), a huge scientific instrument at CERN, provides the highest-energy particle collisions produced in a laboratory to six experiments that hold the potential to answer these questions.

UPDATE: We created a new activity based on authentic LHC data for middle and high school students. Please click here here to learn how to hunt the Higgs boson!


Event of the Week, 04/16/2014: Lets hear it! Four quarks!

The LHCb Collaboration reported on April 9, 2014 an analysis of about 25000 decays of the B0 meson: the result is confirmation of the existence of the Z(4430)- particle with a confidence of at least 13.9 sigma, about as close as an experiment can get to metaphysical certitude. What is so exciting about the Z(4430)- is that it is a four-quark state, meaning someone has to rewrite the book on how quarks combine. In this mass-squared plot, the big red-and-black mountain is the Z(4430)- signal plus background; subtract the background and you are left with the unmistakable blue hill with data from the new particle. Learn more: LHC-b website. Credit: Copyright CERN for the LHCb Collaboration.

View Slideshow of all events

Event of the Month images are hosted on Flickr.