Particles and antiparticles // the Standard Model
- Created by: Eleri M
- Created on: 27-11-18 08:59
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- All Particles
- Hadrons
- Baryons
- 3 quarks
- Up down or strange
- Proton
- u u d
- Antiproton
- u u d
- Neutron
- u d d
- Antineutron
- u d d
- other baryons decay into protons eventually
- via weak interactions
- baryon number of +1
- lambda, proton neutron, sigma-minus, sigma-plus, sigma-zero
- 3 quarks
- Mesons
- 2 quarks
- a quark and an antiquark
- pi mesons and kaon mesons
- Kaons
- k-minus, k-plus, k-zero
- contains either a strange or anti-strange quark
- k-zero mesons have two quark compositions with different strangeness
- k-minus, k-plus, k-zero
- pi
- pi-minus, pi-plus, pi-zero
- pi-zero mesons have two different quark compositions
- Kaons
- kaons decay into pions
- 2 quarks
- Baryons
- Fundamental Particles
- Leptons
- Electron
- Electron neutrino
- Muon
- Muon neutrino
- 200 times the mass of the electron
- Tau
- Tau neutrino
- 3500 times the mass of the electron
- lepton number of +1
- for each of these six leptons, there is then corresponding anitparticles
- neutrinos are uncharged and extremely light
- interact via the strong interaction
- lepton number of +1
- Electron
- Bosons
- gluons
- W+ and W-
- weak nuclear force
- acts upon all particles
- makes particles decay like beta plus and minus
- strangeness doesn't need to be conserved
- Leptons
- Hadrons
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