Yukawa coupling

Yukawa coupling describes how certain particles interact with the Higgs field, giving them mass in the Standard Model of physics. It’s a parameter that determines the strength of the interaction between a fermion (like an electron or quark) and the Higgs field. The larger the Yukawa coupling, the stronger the connection, and the more massive the particle becomes. Think of it as a "stickiness" between the particle and the Higgs field: stronger coupling means more resistance to movement, which manifests as greater mass. This concept helps explain why particles have different masses in the universe.