The Medium Scale High Voltage Test apparatus in TA-53 Building 10 allowed scientists to test electric fields in liquid helium, a crucial part of upcoming experiments into the nature of matter and antimatter. Credit: Image courtesy of Los Alamos National Laboratory
Why is so much more matter than antimatter present in the universe? A clue to this mystery may be provided by a sensitive search for a separation of positive and negative charges inside the neutron, which is referred to as the neutron’s “electric dipole moment” (EDM). The detection of a nonzero EDM in a particle such as the neutron would imply an asymmetry between matter and antimatter, which may explain the imbalance in the amounts of matter and antimatter now observed in the universe.
Scientists have been searching for evidence...
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