There has been considerable debate among physicists over the last 15 years about conflicting measurements of the charge ...

The power of gravity is writ large across our visible universe. It can be seen in the lock step of moons as they circle planets; in wandering comets pulled off-course by massive stars; and in the ...

Physicists have begun to explore the proton as if it were a subatomic planet. Cutaway maps display newfound details of the particle’s interior. The proton’s core features pressures more intense than ...

Top: protons striking a nucleus deflect from their original path depending on velocity, location of impact, and force from the protons inside the nucleus. Bottom: elastic proton scattering cross ...

Quantum electrodynamics (QED) stands as one of the most rigorously tested theories in modern physics, offering a comprehensive framework to describe the interactions between charged particles and the ...

The original version of this story appeared in Quanta Magazine. Physicists have begun to explore the proton as if it were a subatomic planet. Cutaway maps display newfound details of the particle’s ...

Sharper proton beams for safer and more effective treatment When used as a membrane to split molecular hydrogen ions (H 2+) into individual protons, UC-MAC produced proton beams that were ...