Two experiment collaborations, the g2p and EG4 collaborations, combined their complementary data on the proton's inner structure to improve calculations of a phenomenon in atomic physics known as the ...

CERN’s ALPHA collaboration pins down the ground-state hyperfine splitting of antihydrogen within four parts per million ...

These days, everybody learns in grade school that an atom looks a bit like a little solar system, with a positively charged nucleus orbited by negatively charged electrons. Hydrogen is the simplest ...

Hyperfine splitting is a familiar phenomenon in atomic physics in which magnetic interactions between the nucleus and the electrons split the electronic energy levels into sublevels. Eberhard Widmann ...

Scientists are one step closer to answering the question of why matter exists and illuminating the mysteries of the Big Bang and the birth of the universe. Swansea University scientists working at ...

Since the late 1960s, the Laboratoire Aimé Cotton (LAC) in Orsay, France, has made significant progress in the classification of complex atomic spectra. These advances have been driven both by the ...

The Nature Index 2026 Research Leaders reveal the leading institutions and countries/territories in the natural sciences, health sciences, applied sciences and social sciences, according to their ...