By It’s the rarest particle decay ever discovered. Scientists have clinched the case for a special type of decay of subatomic particles called kaons. Further study of the rare decay could reveal a potential flaw in the standard model, physicists’ stalwart theory of subatomic particles.
The decay is known as a “golden channel” because its rate can be predicted to high precision by the standard model. The experiment, called NA62, aims to test that precise prediction.
