Only quarks have a smaller charge, being a third or two-thirds of the elementary charge. The elementary charge of the proton is 1.602192 x 10^–19 coulombs (C).

The Large Hadron Collider (LHC) has begun its first-ever collisions of oxygen ions, in the latest attempt to understand the ...

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.

Aside from their electric charges, protons and antiprotons appear the same. Do they differ on some level not yet measured? If protons do decay, the universe will become frail in its old age.

Weak charge of proton determined for first time Date: September 17, 2013 Source: DOE/Thomas Jefferson National Accelerator Facility Summary: Researchers have made the first experimental ...

This weak charge is predicted by the Standard Model to be about -0.989 for neutrons and about + 0.071 for protons (+) and electrons (-), as measured in elementary charges.

David Armstrong, Chancellor Professor of Physics at William & Mary and chair of the department, is a member of the Qweak Collaboration, a collection of scientists who recorded the first ever direct ...