Press releases April 2013

ALPHA experimenters present novel investigation of the effect of gravity on antimatter

Geneva, 30 April 2013. The ALPHA collaboration at CERN1 has published a paper in Nature Communications describing the first direct analysis of how antimatter is affected by gravity.

ALPHA was the first experiment to trap atoms of antihydrogen — neutral antimatter atoms held in place with a strong magnetic field for up to 1000 seconds. The original goal of the experiment was not to study gravity, but the researchers realised that the data they had already collected might be sensitive to gravitational effects.

CERN to host its first TEDx

Geneva, 16 April 2013. The inaugural TEDxCERN event will take place on 3 May 2013, under the theme ‘Multiplying Dimensions’, at the Globe of Science and Innovation with a Live Webcast at the CERN1 Main Auditorium and at http://tedxcern.ch homepage. Going beyond particle physics, the event, organized with the generous support of Rolex, will provide a stage for the expression of science in multiple disciplines, unveiling bold, new insights into emerging research and innovations that may fundamentally shape the course of things to come.

AMS experiment measures antimatter excess in space

Geneva 3 April 2013. The international team running the Alpha Magnetic Spectrometer (AMS1) 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.

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