# Time period in which an interaction with a π-meson happens?

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The longer-range inter-nucleon force is not a direct result of the gluon field, but is indirectly affected by a quark-antiquark pair (meson).

If this ‘residual’ strong interaction between nucleons is mediated by a π-meson, then what is the maximum time period in which the interaction takes place?

If we assume that it moves at a velocity v → c, then what is the range of the interaction?

I'm not really sure how to tackle this problem...

The pions in this model are virtual particles, they don’t actually exist.

You get a Yukawa potential, you can check how its range depends on the mass of the exchange particle.

## 1. What is a π-meson?

A π-meson, also known as a pion, is a type of subatomic particle that belongs to a group of particles called mesons. It is composed of a quark and an antiquark, and comes in three different types: positive, negative, and neutral.

## 2. How long is the time period in which an interaction with a π-meson happens?

The time period in which an interaction with a π-meson occurs is extremely short, on the order of 10^-23 seconds. This is because π-mesons are unstable and decay into other particles very quickly.

## 3. What types of interactions can occur with a π-meson?

Interactions with π-mesons can involve strong, weak, and electromagnetic forces. For example, π-mesons can interact with protons and neutrons in the nucleus of an atom through the strong force, causing them to change into different types of particles.

## 4. How are π-mesons created?

π-mesons can be created through various processes, such as in high-energy particle collisions or through the decay of other particles. They were first discovered in cosmic ray experiments in the early 20th century.

## 5. What is the significance of studying interactions with π-mesons?

Studying interactions with π-mesons can provide valuable insights into the behavior and structure of matter at the subatomic level. It can also help scientists better understand the fundamental forces that govern the universe and potentially lead to advancements in fields such as particle physics and nuclear energy.