Scientists at Fermilab close in on fifth force of nature::Physicists believe that an unknown force could be acting on sub-atomic particles known as muons.
Scientists at Fermilab close in on fifth force of nature::Physicists believe that an unknown force could be acting on sub-atomic particles known as muons.
“All of the forces we experience every day can be reduced to just four categories: gravity, electromagnetism, the strong force and the weak force. These four fundamental forces govern how all the objects and particles in the Universe interact with each other.”
But electromagnetism and weak force has already been understood as a single force, electro weak. So they are not fundamental
Just quoting the article, but Dr. Wikipedia also lists them as part of the four “fundamental interactions”.
I’m not an expert, but at everyday low energies, electromagnetism and weak interaction apparently behave differently, it’s only at higher energy that they unify into a single force (https://en.m.wikipedia.org/wiki/Electroweak_interaction).