Quarks And Leptons Flashcards
List the 6 fundamental quarks
Up Down Top Bottom Strange Charm
What are quarks influenced by
Nuclear strong force
List the six fundamental leptons
Electron Muon Tauon Electron neutrino Muon neutrino Tauon neutrino
What are leptons governed by
The nuclear weak force
What are bosons made up of
Mesons
What are mesons made up of
Quarks
What can bosons be?
Elementary (photons)
Combination (mesons)
List the five bosons
Gluon Photon W+ boson W- boson Z boson
Antiparticle of a proton
Antiproton
Antiparticle of a neutron
Antineutron
Antiparticle of an electron
Positron
Antiparticle of a neutrino
Antineutrino
Antiparticle of a muon
Anti muon
What are hadrons
Particles and antiparticles that interact through the strong interaction
Give examples of hadrons
Protons
Neutrons
Pi mesons
K mesons
An interaction between a lepton and hadron
Ve + n = p+ e-
Muon decay
_ _
u- = e- + ve + vu
List two facts about fermions
Obey Pauli’s exclusion principle
Consists of quarks and leptons
Charge and strangeness of an up quark
Charge +2/3
Strangeness 0
Charge and strangeness of a down quark
Charge -1/3
Strangeness 0
Charge and strangeness of a strange quark
Charge -1/3
Strangeness-1
Quark components of a K+
_
u s
Quark components of a K0
_ _
d s or s d
Quark components of a K-
_
s u
Quark components of a pi +
_
u d
Quark components of a pi 0
u u, or d d, or s s
Quark components of a pi -
_
d u
Give the main rule in interactions that is true throughout science
Conservation of energy and charge
Give the two particles rules
Conservation of lepton number
Conservation of strangeness
