Astronomers can't see dark matter directly, but know it's there: its gravity shapes galaxies and the large-scale structure of the cosmos. In an effort to uncover the composition of this hidden mass, a team at Lawrence Livermore National Laboratory (LLNL) is pursuing evidence of these particles that exist beyond the standard model of physics. In a new experimental campaign called Magnetometry for Neutrino physics (Magneto-ν), scientists at LLNL are searching for the sterile neutrino using nuclear beta decays of plutonium-241. This hypothetical neutrino species is significantly heavier than
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Space & AstronomyLawrence Livermore National Laboratory
It has been a long-standing mystery in nuclear physics: why do the nuclei of some atoms emit more low-energy gamma rays than they should? The answer can be found in a new study from an international scientific team led by the Facility for Rare Isotope Beams (FRIB) and including authors from Lawrence Livermore National Laboratory (LLNL). Published in Nature, the work sheds light on the internal structure of atomic nuclei and has far-reaching implications for national security and astrophysics. Gamma rays are a type of electromagnetic radiation like visible light and radio waves. Atomic
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