Fundamental particles Flashcards
What are quarks?
Fundamental particles, that make up particles such as protons and neutrons. They exert the strong force on each other.
What are gluons?
An exchange particle that act between quarks. Its fundamental force is the strong force.
What are photons?
Packets of energy. They act between charged particles and its fundamental force is electromagnetic.
What are W+,W- and Z0?
Exchange particles responsible for radioactive decay. Its fundamental force is the weak force.
What is the graviton?
The exchange particle of gravity. It acts between particles with mass.
What is the range of the strong nuclear force.
10^-14 to 10^-15 meters.
What is the range of the weak force?
10^-18 meters.
What are the rules to Feynmann diagrams?
particles are represented by straight lines with arrow heads drawn on them.
Exchange particles are represented by wavy lines.
Particles are created and annihilated at vertices.
Particles made of quarks have quark lines drawn parallel and next to each other.
What are leptons?
They do not feel the strong force
They are fundamental
They include
- electron
- muon
- tau
and their respective Neutrinos
What are the exchange particles
Photons
Gluons
W+-
The graviton
What are hadrons?
particles made up of quarks
which splits them up into Baryons and Mesons
Baryons are made of 3 quarks, so protons and neutrons
Mesons are Quark antiquark pairs, so Pions and Kaons.
What are strange particles?
particles that are produced through the strong interaction and decay through the weak interaction. It is conserved in strong interactions.
