The geometry of Rutherford scattering of α particles off gold nuclei is a hyperbolic trajectory as a function of the impact parameter. See Wikipedia or Hyperphysics. These figures were used in a presentation on Rutherford’s discovery of the nucleus.
Setup of the gold foil experiment:
Hyperbolic trajectory of an α particle in Rutherford scattering, following Rutherford’s historic 1911 paper:
Triangle NOA to compute the angle of deviation φ = π – 2θ
Several hyperbolic trajectories in Rutherford scattering:
Compound vs. single scattering:
Edit and compile if you like:
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