The reason most of us are only familiar with electric charge and not both of these is because of the Higgs particle.

They increase in value at lower energy scales, at which the quark masses are generated by the Higgs.

The Higgs, over here on the left, has a large mass and breaks the symmetry of this electroweak pattern.

In about the first billionth of a second or so, the Higgs field kicked in, and the quarks and the gluons and the electrons that make us up got mass.

The picture is that the electrons and the quarks in your body and in the universe that we see around us are heavy, in a sense, and massive, because they're surrounded by Higgs particles.

From their location in this pattern, we know that these new particles should be scalar fields like the Higgs particle, but have color charge and interact with the strong force.

Since this massive Higgs sits along the horizontal direction in this diagram, the photons of electromagnetism remain massless and interact with electric charge along the vertical direction in this charge space.

So there's an old idea in particle physics that this known pattern of charges, which is not very symmetric, could emerge from a more perfect pattern that gets broken similar to how the Higgs particle breaks the electroweak pattern to give electromagnetism.

If it's not true because it's quite a convoluted mechanism, although it's the simplest we've been able to think of then whatever does the job of the Higgs particles we know have to turn up at the LHC.

Studying the kinematics of pairs of particles produced by the decay of a parent, such as the Z boson decaying to a pair of electrons or the Higgs boson decaying to a pair of tau leptons or photons, to determine various properties and mass of the parent.