# Chapter 23: Feynman Diagrams

Difficulty Level:

**At Grade**Created by: CK-12

## The Big Idea

The interaction of subatomic particles through the four fundamental forces is the basic foundation of all the physics we have studied so far. There’s a relatively simple way to calculate the probability of collisions, annihilations, or decays of particles, invented by physicist Richard Feynman, called Feynman diagrams. Drawing Feynman diagrams is the first step in visualizing and predicting the subatomic world. If a process does not violate a known conservation law, then that process must exist with some probability. All the Standard Model rules of the previous chapter are used here. You are now entering the exciting world of particle physics.

Chapter Outline

### Chapter Summary

### Image Attributions

Show
Hide
Details

Description

Feynman diagrams are used to calculate the probability of collisions, annihilations, or decays of particles. Drawing Feynman diagrams is the first step in visualizing and predicting the subatomic world.

Authors:

Tags:

annihilate
antimatter particles
backwards in time
(17 more)
CK.SCI.ENG.SE.1.Physics-People's-Physics-(Video).23
collision diagrams
conservation law
cpt symmetry
electromagnetic force
electromagnetic radiation
feynman diagram
horizontal axis
matter and antimatter
matter particle
mirror reflection
time
time axes
time diagram
traveling backwards
vertical axis
virtual photon

Subjects:

Date Created:

Feb 23, 2012
Last Modified:

Aug 10, 2015
**Save or share your relevant files like activites, homework and worksheet.**

To add resources, you must be the owner of the FlexBook® textbook. Please Customize the FlexBook® textbook.