AMS experiment measures antimatter excess in space
Geneva 3 April 2013. The international team running the Alpha Magnetic Spectrometer (AMS ) today announced the first results in its search for dark matter. The results, presented by AMS spokesperson Professor Samuel Ting in a seminar at CERN2, are to be published in the journal Physical Review Letters. They report the observation of an excess of positrons in the cosmic ray flux. The AMS results are based on some 25 billion recorded events, including 400,000 positrons with energies between 0. GeV and 350 GeV, recorded over a year and a half. This represents the largest collection of antimatter particles recorded in space.
