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14-Collective model (general stuff (combination of concepts (nucleus…

- - - - in shell model this in encompassed in nuclear spin
    - - however protons and neutrons have intrinsic magnetic moments and internal charge structure due to quarks
      - protons can also gain contribution from any angular moment
    - - can used electron mag moments in atoms as analogy
      - nuclear spin parallels electron spin, but smaller
      - maths
    - - gs much bigger for proton than expected
        
        from internal quark structure
    - - schmidt lines
  - - - in shell model if last shell is full a spherical shape is assumed
      - spherical means 0 EQM
      - deviations from 0 EQM larger than expected from the shell model
        
        indicates deviations from spherical charge distributions
      - describes shape of nuclear charge distribution
    - - Dipole moment
      - quadrupole
        
        2 dipoles set antiparallel
        
        maths:
      - octupole
    - - therefore it is likely that many nuclei have permanent distortions
      - maybe caused by interactions between outer shell in inner shell
        nuclei