4' Scattering processes

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4. Scattering processes

• 4.1 General considerations
• 4.2 Cross section
• 4.3 Fermis 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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Energy of electrons scattered by a nucleus, as a
function of scattering angle
(Povh, ..., TK)
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Form factors (Povh..., Particles nuclei)
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Helicity suppression of electron backscattering
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Electron spectrometer MAMI B at the Mainz
microtron
(Povh, ..., P N)
820 MeV
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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