Helium atom precision measurements and calculations have a history of nearly a century. In the 1960s, theorists discovered that the fine-structure split (23P0-23P2) of the 23P energy level of ...

A research team has achieved a significant breakthrough in determining fundamental properties of atomic nuclei. The team conducted laser spectroscopy experiments on muonic helium-3. Muonic helium ...

1.97007 femtometer (quadrillionths of a meter): That's how unimaginably tiny the radius of the atomic nucleus of helium-3 is. This is the result of an experiment at PSI that has now been published ...

The atomic number is 6 so 14 6 C contains six protons. ... A helium atom that has lost or gained an electron is an ion. ... Evidence for the structure of the atom.

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.

Atom Optics: The manipulation and control of atom beams using optical-like components, enabling focusing, diffraction, and beam shaping. Neutral Helium Microscopy and Atom Optics Publication Trend ...

An international research team led by the Paul Scherrer Institute PSI has measured the radius of the nucleus of muonic helium-3 with unprecedented precision. The results are an important stress ...

Muonic helium-3 is a special form of helium in which the atom’s two electrons are replaced by a single, much heavier muon. Yesterday, the results have been published in the prestigious journal ...