Neutrinos can deliver not only full-on hits but also ‘glancing blows’

30 diciembre 2014

In what they call a ‘weird little corner’ of the already weird world of neutrinos, physicists have found evidence that these tiny particles might be involved in a surprising reaction. Neutrinos are famous for almost never interacting. As an example, ten trillion neutrinos pass through your hand every second, and fewer than one actually interacts with any of the atoms that make up your hand. However, when neutrinos do interact with another particle, it happens at very close distances and involves a high-momentum transfer.