Strangeness
The weak interaction is the only interaction that causes a quark to change into a different type of quark. In beta decay up quarks and down quarks are changed into one another. In some reactions an up or down quark can change into a strange quark meaning strangeness is not conserved.
During the weak interaction there can be a change in strangeness of ±1.
| Section 2 | Feynman Diagrams | |
|---|---|---|
| Lesson 9 | ||
| Learning Outcomes | To know what a Feynman diagram shows us | |
| To be able to draw Feynman diagrams to represent interactions and decays | ||
| To be able to state the correct exchange particle | M.BENYOHAI |