Particles And Antiparticles Flashcards
1
Q
The antiparticle theory states that for every particle there is a corresponding antiparticle that:
A
Has the same rest Mass and rest energy
Has opposite charge
Annihilates the particle if the 2 meet
2
Q
What is pair production?
A
When a gamma ray photon produces a particle and it’s matching antiparticle (usually electron and a positron)
3
Q
What is the minimum energy for a photon to undergo pair production?
A
The total rest energy of the particles produced
4
Q
What is annihilation?
A
When a particle and its matching antiparticle meet and their mass is converted back to energy
5
Q
What is emitted during annihilation?
A
A pair of gamma ray photons (of equal energy to the total rest energy of the particles)
