An antimatter experiment at CERN reveals that the hyperfine splitting of antihydrogen is the same as that of hydrogen to four parts in 10,000. The research was done by physicists working on the ...

A huge discrepancy between the observed hyperfine splitting in highly-ionized bismuth-209 atoms and the expected value could be a calculation error rather than ...

NEWPORT NEWS, VA – While it’s commonplace for many scientists to collaborate on nuclear physics experiments at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility, it’s ...