Geneva, 3 June 2015. Today, CERN1's Large Hadron Collider (LHC) started delivering physics data for the first time in 27 months. After an almost two year shutdown and several months re-commissioning, the LHC is now providing collisions to all of its experiments at the unprecedented energy of 13 TeV, almost double the collision energy of its first run. This marks the start of season 2 at the LHC, opening the way to new discoveries. The LHC will now run round the clock for the next three years.
Geneva, 13 May 2015. In an article published today in Nature, the CMS and LHCb collaborations describe the first observation of the very rare decay of the B0s particle into two muon particles. The Standard Model, the theory that best describes the world of particles, predicts that this rare subatomic process happens about four times out of a billion decays, but it has never been seen before. These decays are studied as they could open a window to theories beyond the Standard Model, such as supersymmetry. The analysis is based on data taken at the Large Hadron Collider (LHC) in 2011 and 2012. These data also contain early hints of a similar, but even more rare decay into two muons of the B0, a cousin of the B0s.
Washington, 7 May 2015. A new agreement between the United States and the European Organization for Nuclear Research (CERN1) signed today will pave the way for renewed collaboration in particle physics, promising to yield new insights into fundamental particles and the nature of matter and our universe.
Geneva, 5 May 2015. On Monday, the Hôpitaux Universitaires de Genève (HUG – University Hospitals of Geneva) and CERN1 opened an emergency response centre on the Swiss part of the CERN site. The centre is the result of a collaboration established under the auspices of the Swiss federal and Geneva cantonal authorities and aims to improve safety on the CERN sites and in the western part of the Canton of Geneva. Every day, around 9000 people are present on the CERN site.
Geneva, 30 April 2015. Arts @ CERN, CERN1's official engagement with the arts, is today announcing three winning art projects from the different strands, Accelerate @ CERN and Collide @ CERN, as well as launching the international open call for Collide @ CERN in digital arts. Now in its fifth year, Arts @ CERN has welcomed more than 70 artists to the Laboratory.