A recent experiment has determined how much of the mirror-symmetry breaking in the electron-quark interaction originates from quarks' spin preference in the weak interaction five times more precisely ...

What makes up the matter we perceive in the universe? To start, there are the usual suspects, like electrons, protons, quarks and neutrinos. But if those particles aren't strange enough for you, I'm ...

A recent experiment at Jefferson Lab probed the mirror symmetry of quarks, determining that one of their intrinsic properties is non-zero—as predicted by the Standard Model. From matching wings on ...

A new facility opens for experiments in SLAC’s historic End Station A, where the first evidence for quarks was discovered. Electrons are once again streaming into SLAC’s End Station A, setting the ...

From matching wings on butterflies to the repeating six-point pattern of snowflakes, symmetries echo through nature, even down to the smallest building blocks of matter. Since the discovery of quarks, ...

A new measurement by CERN’s ATLAS Collaboration has strengthened evidence that the masses of fundamental particles originate through their interaction with the Higgs field. Building on earlier results ...

Theoretical calculations involving the strong force are complex. One aspect of this complexity arises because there are many ways to perform these calculations. Scientists refer to some of these as ...

The proton is a positively charged particle that makes up every single atom in our Universe. We’re normally taught in schools that protons are really, really, really, REALLY, tiny dots of charge. But ...

Probing ever deeper into the inner world of the atom, nuclear physicists have uncovered an increasingly baffling collection of tiny particles. Besides the familiar neutrons, electrons and protons, ...

As they probe deeper into the heart of the atom, discovering ever smaller and more mysterious particles and particles within particles, scientists have succeeded in bringing the once stable world of ...

Symmetry makes the world go round. Scientific theories of the physics of elementary particles stem from simple symmetries that dictate the fundamental forces governing our Universe. Sometimes ...