Getting a grip on quark mixing: Physicists introduce framework to determine amount of mixing between up and down quarks

The quarks that make up the nuclei of all atoms around us are known to "mix": the different types of quark occasionally change into one another. The amounts in which these processes happen are not very well known, though—and the theoretical values don't even add up to 100%. UvA-IoP physicist Jordy de Vries and colleagues from Los Alamos, Seattle, and Bern have now published work that takes a step towards solving these mysteries.