Particle Physics
- Created by: Megan mcHarron
- Created on: 04-05-18 13:32
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- Particle Physics
- Matter
- Hadrons
- NOT fundamental strong force & weak force
- Made of Quarks
- Mesons
- Pions
- pi + is up antidown
- Pi - is down antiup
- Pi 0 is either up antiup or down antidown
- Kaons
- K+ is up antistrange
- Strangeness
- K0 is down antistrange
- strangeness is conserved when an s quark is produced via the strong interaction
- Strangeness ( S) isn't conserved when S quarks decay via the weak interaction
- S can change by +1 or -1
- Strangeness
- K- is strange antiup
- Strangeness
- K0 is down antistrange
- strangeness is conserved when an s quark is produced via the strong interaction
- Strangeness ( S) isn't conserved when S quarks decay via the weak interaction
- S can change by +1 or -1
- Strangeness
- Anti k0 is strange antidown
- K+ is up antistrange
- made of 2 quarks
- Pions
- Baryons
- made of 3 quarks
- baryons have a baryon number of 1 . Antibaryon has a baryon number of -1. If it is not a baryon its baryon number is 0. A quark has baryon number of 1/3 and antiquark has a baryon number of -1/3.
- P is up, up ,down
- Proton is the most stable
- anti P is antiup,antiup,antidown
- N is up, down ,down
- anti N is antiup, antidown, antidown
- Mesons
- Leptons
- fundamental, strong and weak force
- electron, muon, tao, electron-neutrino, muon-neutrino,
- a lepton has a lepton number of 1. An antilepton has a lepton number of -1 and not a lepton has a lepton number of 0
- Bosons
- fundamental
- electromagnetic has an exchange particle of a virtual photon. strong Nuclear force has an exchange particle of a gluon (pion).the weak nuclear force has an exchange particle of w+, w- and z0.The gravitational has possibly the exchange particle of a graviton but this hasn't been discovered yet.
- the virtual photon has an infinite range
- the gluon has a short range
- no effect outside of nucleus
- the w boson has a vey short range
- no effect outside of nucleus
- the w boson has a vey short range
- exchange particles
- force carriers
- Hadrons
- Conservation
- the following Quantum numbers are conserved: 1) Baryon number 2)Lepton Number 3)Strangeness
- the following physical quantities are conserved : m/E , Q , p=mv
- pair production
- hfmin=2E = 2(mc^2)
- pair Annihilation
- pair production
- hfmin=2E = 2(mc^2)
- 2hf = 2E =2mc^2
- quarks and antiquarks have the same rest mass but opposite charge
- pair production
- particles and antiparticles
- quarks and antiquarks have the same rest mass but opposite charge
- Specific Charge
- particle = q/m
- nucleus = z*e / nuclear mass
- ion = number of electrons lost or gained * e / nuclear mass + mass of remaining electrons
- charge for mass ratio
- Q/m (ckg^-1)
- Atom
- discovery of electron
- highest specific charge
- J.J. Thompson
- electron beam tube ( deflection in electric and magnetic field)
- discovery of nucleus
- Rutherford particle scattering with gold leaf experiment
- made of protons an neutrons
- discovery of electron
- Isotopes
- same proton number different neutron number
- top number is the nucleon number . the bottom number is the proton number
- Radioactivity
- random
- cannot predict when/which nucleus will decay
- spontaneous
- independent of physical conditions
- random
- same proton number different neutron number
- Matter
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