Proton’s mass radius is apparently shorter than its charge radius The quarks that give it charge aren't hanging out with the gluons that provide mass.

Recent theoretical and experimental advances provide new insights into how mass is distributed within particles like protons, neutrons, and pions, offering critical guidance for future research ...

Nuclear physicists may have finally pinpointed where in the proton a large fraction of its mass resides. A recent experiment carried out at the U.S. Department of Energy's Thomas Jefferson ...

Protons are tiny particles just a femtometer across, but without them, atoms wouldn't exist. Protons are tiny subatomic particles that, along with neutrons, form the nucleus of an atom. The ...

Protons are particles that exist in the nucleus of all atoms, with their number defining the elements themselves. Protons, however, are not fundamental particles. Rather, they are composite ...

Physicists have long known that protons are more massive than the stuff that makes them up, but we didn’t know where that mass was located. Now we do.

Physicists have long known that protons are more massive than the stuff that makes them up, but we didn’t know where that mass was located. Now we do.

The proton, one of the building blocks for all matter, has a variable size depending on how you look at it. If you are looking at its charge, it will have one radius, but if you look at its mass ...

Get Instant Summarized Text (Gist) A new measurement of the Z boson mass at the LHC yields 91,184.2 MeV with a 9.5 MeV uncertainty, matching previous results and Standard Model predictions.