By Eliana Shapere
“People have been searching for an EDM (Electric Dipole Moment) of the neutron since 1950. We are trying harder and harder to find the needle in the haystack. If it were discovered at the anticipated level of sensitivity and accuracy that experiments can obtain now, it would be completely revolutionary. It would be evidence for physics that we can’t currently describe theoretically.”
Brad Plaster, associate chair and professor of physics in the University of Kentucky College of Arts & Sciences, lit up as he described his research.
“Protons and neutrons compose the nucleus of atoms. Neutrons have no electric charge. However, they are composed of quarks, subatomic, fractionally charged particles,” he explained. “What the EDM would postulate is that there might be some slight imbalance of positive