Classical ellipsoidal scattering Impact parameter

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SUMMARY

The discussion centers on the calculation of the impact parameter in classical ellipsoidal scattering, represented by the equation (x^2 + y^2)/a^2 + z^2/c^2 = 1. The derived formula for the impact parameter is b(θ) = R / (f^2 * tan^2(θ/2) + 1)^0.5, where f = c/a. Participants emphasize the need for clarity in problem statements, particularly regarding variables like "b" and "θ," and suggest using LaTeX for improved readability of mathematical expressions.

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  • Understanding of classical mechanics and scattering theory
  • Familiarity with ellipsoidal geometry and equations
  • Knowledge of trigonometric functions, particularly tangent and cotangent
  • Proficiency in LaTeX for formatting mathematical expressions
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Homework Statement


(x^2 + y^2)/a^2 + z^2/c^2 = 1

Homework Equations


[/B]

The Attempt at a Solution



the answer is :
b(θ) = R / (f^2 * tan^2(θ/2) + 1)^0.5
I can't understand how to calculate this.

My attempt :
(x^2 + y^2)/a^2 + z^2/c^2 = 1 from this.

b^2 + z^2/f^2 = a^2 , f = c/a, z = b*cot(∅)

b^2 *[ 1 + {1/f*tan(∅)}^2 ] = a^2

could you give a hand?...
 
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Hello, it would be helpful, if you explained what is expected to be done. E.g. there is no "b" nor a "##\theta##" in the problem description. Also you should use more parentheses in case of a linear notation of quotients. Of course it would be far better, if you could use LaTeX code. For a brief introduction see: https://www.physicsforums.com/help/latexhelp/
(It's quite easy to make formulas a lot more readable.)
 

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