2 Flashcards
What are hadrons ?
Particles and antiparticles that can interact through the strong interactions
Examples of hadrons?
Protons, neutrons, pi mesons, K mesons
What are leptons
Particles and antiparticles that do not interact through the strong interaction
Examples of leptons
Electrons, muons, neutrinos
What are baryons?
Baryons are protons and all other hadrons (including neutrons) that decay into protons, either directly or indirectly
What are mesons?
Hadrons that do not include protons in their decay products. In other words, kaons and pions are not baryons
What is a muon?
Negatively charged particle with a rest max over 200 times the rest mass of an electron
What is a pion
Can be positively, negatively or neutrally charged which has a rest mass greater than a muon but less that a proton
What is a kaon
Positively, negatively or neutrally charger what has a rest mass greater than a pion but less than a proton
What does a kaon decay into?
Pions OR
A muon and anti neutrino OR
An anti muon and a neutrino
What does a charged pion decay into?
Muon and anti neutrino OR
An anti muon and a neutrino OR
A pi 0 meson decays into high energy photon
What does a muon decay into?
An electron, an anti-electron neutrino and a muon neutrino
What does an anti muon decay into?
Positron and a neutrino
What quarks are mesons made up of?
Quark and antiquark pair
Baryons/antibaryons quark combination
Baryon - 3 quarks
Antibaryon - 3 antiquarks