Scientists measure precise proton radius to help resolve decade-old puzzle

Researchers have made a precise measurement of the size of the proton -- a crucial step towards solving a mystery that has preoccupied scientists around the world for the past decade. The world's physicists have been scrambling to resolve the proton-radius puzzle. Now, a study finds a new measurement for the size of the proton at 0.833 femtometers, which is just under one trillionth of a millimeter.

from Top Technology News -- ScienceDaily https://ift.tt/311RbtP