Sunday, April 05, 2015

Subject: Researchers have begun circulating beams of protons in the Large Hadron Collider after a two-year shutdown for upgrades

Image: CMS pixel tracker

Big Bang Beam: Large Hadron Collider Restarts After Two-Year Break - nbcnews.com/science

"The LHC is the world's most powerful collider. It's also the most expensive, with an estimated construction cost of $10 billion. Thousands of physicists and engineers are on its experimental teams.
During its first research run, between 2009 and 2013, the collider was used to discover the Higgs boson, a subatomic particle whose existence was predicted in the 1960s but could not be detected until the LHC came along. The Higgs is thought to play a role in imparting the property of mass to other fundamental particles — and it was the last big missing puzzle piece in the Standard Model, the theory that governs particle physics..."