New posts in Interactions

How do non-linear equations lead to self-interaction?

Does the quadratic mass term $\frac{1}{2}m^2\phi^2$ belong to the free Lagrangian or is it an interaction term?

How do fields work?

What’s lacking in our understanding of the strong interaction?

Was X17 predicted before it was observed?

How do physicists compare the relative strengths of the four forces?

Why do atoms repel when closer but attract when farther apart?

How exactly is a normal force exerted, at the molecular level?

In particle colliders, according to QM, how are two particles able to "collide"?

Why do we say there are four fundamental forces in the Standard Model (if gravity is included)?