Physicists unlock mystery of subatomic particle

interns Contributor
Font Size:

For the first time, physicists have confirmed that certain subatomic particles have mass and that they could account for a large proportion of matter in the universe, the so-called dark matter that astrophysicists know is there but that cannot be observed by conventional means.

The finding concerns the behavior of neutrinos, ghost-like particles that travel at the speed of light. In the new experiment, physicists captured a muon neutrino in the process of transforming into a tau neutrino.

Researchers had strongly believed that such transformations occur because they have been able to observe the disappearance of muon neutrinos in a variety of experiments.

But the research announced Monday marks the first time that the appearance of a tau neutrino has been directly observed.

Full story: Physicists observe change in neutrinos, unlocking mystery of subatomic particle –