What are the four known fundamental interactions among the elementary particles that make up all matter?

and whaT Are the three that the scientist with LHC were looking for?What are the four known fundamental interactions among the elementary particles that make up all matter?
Electromagnetism


Gravitation


Nuclear Strong force (strong interaction)


Nuclear Weak force (weak interaction)





All known forces can be described in terms of these 4 fundamental forces.





The people at LHC were studying electromagnetism, strong interaction and weak interaction, in hopes of deriving a Grand Unification theory for these three forces, that states that these three forces stemmed from 1 original force (one unified field).

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