Formula: Compton Scattering Wavelength before    Scattering angle   

Formula: Compton Scattering
Compton scattering (photon-electron scattering)

Wavelength before

Wavelength of the photon before the collision.

Wavelength after

Wellenlänge des Photons nach dem Stoß.

Scattering angle

Scattering angle between the two momentum vectors of the photon after and before the collision.


Mass of the particle (e.g. an electron) at which the photon is scattered.

Planck's Constant

Planck's constant \( h \) is a physical constant from quantum mechanics and has the following exact value: $$ h ~=~ 6.626 \, 070 \, 15 ~\cdot~ 10^{-34} \, \mathrm{Js} $$

Speed of light

Speed of light is a physical constant and indicates how fast light travels in empty space (vacuum). It has the following exact value in vacuum: $$ c ~=~ 299 \, 792 \, 458 \, \frac{ \mathrm{m} }{ \mathrm{s} } $$

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