Physicists hope to probe standard model with misshapen radium monofluoride
By 
Tim Wogan2025-10-30T14:43:00
Effect never observed in a molecule could help adjudicate between competing models of nuclear structure
The hyperfine structure of radium monofluoride has been measured by researchers in the US and elsewhere with such precision that the effects of the finite size of the nuclear magnetisation are visible for the first time. This enhances the possibility that researchers could use the molecule to search for add-ons to the standard model of particle physics such as signatures of dark matter or sources of matter–antimatter asymmetry.