Okay kiddo, have you ever played with magnets before? When you take two magnets and put them close together, they either attract or repel each other, depending on which side is facing each other. This is because magnets have something called magnetic fields that push and pull on each other.
Now, let's talk about the Yukawa interaction. It's a kind of force that happens on a super tiny scale, like inside the nucleus of an atom. Inside the nucleus, there are particles called protons and neutrons, and they're held together by something called the strong nuclear force.
The strong nuclear force is what keeps the protons and neutrons stuck together, but it only works over a really short distance. So, if two protons or two neutrons get too close together, they will start to repel each other because the strong nuclear force isn't strong enough to hold them together.
This is where the Yukawa interaction comes in. It's a kind of mathematical equation that helps explain how the strong nuclear force works over short distances. The equation includes something called the Yukawa potential, which is kind of like the magnetic field in a magnet. It's what makes the protons and neutrons attract or repel each other, depending on how far apart they are.
So, to sum it up, the Yukawa interaction is a mathematical equation that helps explain how the strong nuclear force works in really tiny spaces like inside the nucleus of an atom. It's kind of like magnets pushing and pulling on each other, but instead of magnets, it's protons and neutrons being held together by the strong nuclear force.