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Researchers Apply Supercomputing to Question of Matter, Antimatter

An international team of scientists report they have used supercomputing to calculate subatomic particle decay, which they say represents a landmark in verifying basic physics theory. The calculation relates to matter-antimatter asymmetry, which the scientists call “one of the most profound questions in science today.” They say that exploring exactly how and why subparticles decay could help answer many important questions. The researchers developed new computing techniques using several of the world’s fastest supercomputers to accurately describe the decay process as a computational problem. Their calculations required 54 million processing hours on the US Argonne National Laboratory’s Intrepid BlueGene/P supercomputer. Other supercomputing resources used included the Ds Cluster at US Fermi National Laboratory, as well as the Iridis Cluster at the University of Southampton and the DiRAC facility, both in the UK. The researchers say this work should also lead to the creation of new supercomputing technologies that will enable them to continue their work. They plan to publish their research in Physical Review Letters. ( National Laboratory)

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