4. Scattering processes
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4. Scattering processes
4.1 General considerations
4.2 Cross section
4.3 Fermi‘s golden rule
4.4 Feynman diagrams
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Momentum, kinetic energy and reduced wavelength
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Feynman graphs (Povh..., Particles & nuclei)
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5. Geometrical shape of the nucleus
5.1 Kinematics of electron scattering
5.2 Rutherford scattering cross section
5.3 The form factor
5.4 Mott scattering
5.5 Nuclear charge distributions and radii
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(Povh, ..., T&K)
Energy of electrons scattered by a nucleus,as a function of scattering angle
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Form factors (Povh..., Particles & nuclei)
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Helicity suppression of electron backscattering
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820 MeV
Electron spectrometer MAMI – B at the Mainz microtron
(Povh, ..., P & N)
12 m
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Differential Cross section for electron scattering from 12C:
(Povh, ..., P & N)
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Differential cross section for electron scattering from 40Ca and 48Ca:
(*10)
(:10)
(Povh, ..., P & N)
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Nuclear charge density nucleon (number)density
(Bopp, Kerne...)
(Segrè, Nuclei & particles)
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500 MeV Electrons: 10 meV neutrons:
atomic nuclei macromolecules (a few 10-15 m) (a few 10-9 m)
ILL annual report 1996 (soft matter) www.ill.fr
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