There Aldo Antognini's team generates so-called muonic helium-3, in which the two electrons of the helium atom are replaced by an elementary particle called a muon. This allows the nuclear radius ...

One is Na₂He, which consists of one helium atom and two sodium atoms, while the other is Na₂He O, ... Crystal structure of Na₂He, which resembles a 3D checkerboard.

Muonic helium-3 is a special form of helium in which the atom s two electrons are replaced by a single, much heavier muon. Skip to main content. Your source for the latest research news.

Helium is the simplest element in the periodic table with more than one particle in its nucleus, yet state of the art theory and experiments on it don't add up.

Physicists have created the first-ever atomic vortex beam — a swirling tornado of atoms and molecules with mysterious properties that have yet to be understood.

Instead of water, they used a nanoscopic droplet of liquid helium cooled to -273°C as the solvent – and instead of a grain of salt, they used an atom of sodium.. The researchers embedded a ...