In the very first microseconds of the Big Bang, something strange happened. Matter somehow outnumbered antimatter and kept the fledgling universe from annihilating itself. This break with conventional ...

For generations, physicists were sure the laws of physics were perfectly symmetric. Until they weren’t. Symmetry is a tidy and attractive idea that falls apart in our untidy universe. Indeed, since ...

Parity violation in neutron physics represents a subtle but fundamentally important deviation from mirror symmetry in nuclear interactions. This phenomenon arises from the interplay between the weak ...

The first-known observations of matter–antimatter asymmetry in a decaying composite subatomic particle that belongs to the baryon class are reported from the LHCb experiment located at the Large ...

Astronomers developed a new method to calibrate detectors to the light from dust in our Galaxy, thereby describing a new physics, with 99.2 percent accuracy, that may show parity symmetry breaking.

Scientists have long tried to experimentally demonstrate a certain symmetry property of the weak interaction - parity violation - in molecules. So far, this has not been possible. A new ...

Why the universe is dominated by matter today, instead of being comprised of equal parts matter and antimatter, is one of the most intriguing questions in all of science. One of the conditions ...

Research into chiral molecules has long been driven by the quest to understand the subtle differences between enantiomers—molecules that are mirror images yet non-superimposable. Recent advances in ...