The “proton radius puzzle” has been reinforced by a precise measurement of an atomic transition in muonic deuterium, which suggests the radius of the deuterium nucleus is much smaller than expected.

Scientists, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen. Scientists from the Max Planck ...

The proton, discovered 100 years ago 1, is an essential building block of visible matter. The nucleus of a hydrogen atom consists of a single proton, making this atom a suitable platform for ...

In an atomic bomb, the energy or force of the weapon is derived only from nuclear fission - the splitting of the nucleus of heavy elements such as plutonium or highly enriched uranium into lighter ...

Seven years after the end of WWII, the US detonated the world's first hydrogen bomb. H-bombs use a combination of nuclear fission and fusion and are far more powerful than atomic bombs. Edward ...