Geneva 17 August 2015. The ALICE experiment at the Large Hadron Collider (LHC) at CERN1 has made a precise measurement of the difference between ratios of the mass and electric charge of light nuclei and antinuclei. The result, published today in Nature Physics, conﬁrms a fundamental symmetry of nature to an unprecedented precision for light nuclei. The measurements are based on the ALICE experiment’s abilities to track and identify particles produced in high-energy heavy-ion collisions at the LHC.
Geneva, 12 August 2015. In a paper published today in Nature, the Baryon Antibaryon Symmetry Experiment (BASE1) at CERN2's Antiproton Decelerator (AD), reports the most precise comparison of the charge-to-mass ratio of the proton to that of its antimatter equivalent, the antiproton. The charge-to-mass ratio — an important property of particles — can be measured by observing the oscillation of a particle in a magnetic field. The new result shows no difference between the proton and the antiproton, with a four-fold improvement in the energy resolution compared with previous measurements.
Geneva/Vienna, 27 July 2015. The world particle-physics community has convened in Vienna for the 2015 European Physical Society Conference on High Energy Physics (EPS-HEP2015), where the latest results in the field are being presented and discussed. These include the first results from Run 2 of the Large Hadron Collider (LHC) at CERN1, which are being presented for the very first time, less than two months after the experiments started to take data at the unprecedented energy of 13 TeV, following a two-year long shutdown.
Geneva, 14 July 2015. Today, the LHCb experiment at CERN’s Large Hadron Collider has reported the discovery of a class of particles known as pentaquarks. The collaboration has submitted a paper reporting these findings to the journal Physical Review Letters.
Geneva, 15 June 2015. CERN1 today announced the winners of its 2015 beamline for schools competition. Two teams of high-school students have been selected to travel to CERN in September to carry out their own experiments using a CERN accelerator beam. The winners, the “Leo4G” team from Liceo Scientifico Leonardo da Vinci School in Florence, Italy and the “Accelerating Africa” team from St John's College and Barnato Park High School in Johannesburg, South Africa, were selected from 119 teams from around the world, adding up to about 1050 high-school students.