Protons Pair Up With Neutrons

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Correlated protons and neutrons were measured in the BigBite large acceptance spectrometer (bluegold magnet with detector package) and a neutron detector (tall assembly at right).
Correlated protons and neutrons were measured in the BigBite large acceptance spectrometer (blue/gold magnet with detector package) and a neutron detector (tall assembly at right).

Research performed at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility has found that protons are about 20 times more likely to pair up with neutrons than with other protons in the nucleus. The result will be published online by the journal Science, at the Science Express website.


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