Particle Physics - Interactions Flashcards
Electromagnetic - Exchange Particle
Virtual Photon
Electromagnetic interaction is responsible for:
The force between charged particles
Strong Nuclear - Exchange Particle
Gluon
Strong Nuclear force is responsible for:
The force between quarks and nucleons.
Weak Nuclear - Exchange Particle
W-, W+, or Z⁰ Bosons
Weak Nuclear Force is responsible for:
Radioactive decay and nuclear fusion
Gravity - Exchange Particle
Graviton
Gravity is responsible for:
Gravitational force between masses
What are the four fundamental forces?
Electromagnetic
Strong Nuclear
Weak Nuclear
Gravity
How are exchange particles transferred?
Back and forth between the interacting particles.
How is the size of a fundamental force calculated?
The rate of exchange of their respective exchange particles.
Why are exchange particles sometimes called virtual particles?
They only exist during the interaction.
What happens to exchange particles during interactions?
They are emitted by one interacting particle and absorbed by the other.
What type of diagram represents particle interaction?
Feynman Diagrams.
What happens during ß- decay?
A neutron decays into a proton and a W- boson, the W- boson is unstable and further decays into an electron, and an antielecton neutrino.
