Chapter 23 Flashcards
What are neutrinos?
Neutrinos (ν) are subatomic particles produced in beta decay. They have very little mass and are electrically neutral
What is antimatter?
Matter composed of antiparticles, subatomic particles of matter that are identical to another subatomic particle in mass but opposite to it in electric charge.
What is the positron?
The positron is the antiparticle of the electron
What is pair production?
The formation of one electron and one positron from a gamma photon
What is pair annihilation?
The formation of two γ-photons when a particle-antiparticle pair collide; the pair convert all their mass into energy
What are leptons?
Individual point objects that are not subject to the strong force
What are hadrons?
Subatomic particles that experience all the fundamental forces, including the strong nuclear force
What are baryons?
Baryons are hadrons that are made from any 3 quarks or 3 antiquarks
What are mesons?
Mesons are hadrons that are made from any quark-antiquark pair
What are quarks?
Quarks are the fundamental building blocks of baryons and mesons
