Rutherford scattering

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:

Extreme backscattering:

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:

% Author: Izaak Neutelings (July 2017)
% Sources:
% https://www.tandfonline.com/doi/abs/10.1080/14786440508637080
% https://indico.cern.ch/event/1126814/contributions/4729554/attachments/2386887/4079372/Izaak_paper_reading_Rutherford_nucleus_20170713_v5.pdf
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\usepackage{amsmath} % for \dfrac
\usepackage{tikz}
\tikzset{>=latex} % for LaTeX arrow head
\usepackage{pgfplots} % for the axis environment
\usetikzlibrary{calc} % to do arithmetic with coordinates
\usetikzlibrary{angles,quotes} % for pic
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\usetikzlibrary{bending} % for arrow head angle
\tikzstyle{bend>}=[-{Latex[flex'=1,length=3,width=2.5]}]
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% mark right angle
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\coordinate (tempa) at ($(#3)!#1!(#2)$);
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\coordinate (tempc) at ($(tempa)!0.5!(tempb)$);%midpoint
\draw (tempa) -- ($(#3)!2!(tempc)$) -- (tempb);
}
\begin{document}
 
 
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Click to download: hyperbola.texhyperbola.pdf
Open in Overleaf: hyperbola.tex

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