Distance of Closest Approach equation

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SUMMARY

The discussion focuses on deriving the distance of closest approach in the context of Rutherford scattering, specifically relating it to the impact parameter and limiting speed as the distance approaches infinity. Participants emphasize the importance of conserved quantities in this scenario, noting that energy conservation is crucial when analyzing motion in a conservative field. The use of Taylor expansion for approximations is also highlighted as a necessary step in the derivation process.

PREREQUISITES
  • Understanding of Rutherford scattering principles
  • Familiarity with the concept of impact parameter
  • Knowledge of energy conservation in conservative fields
  • Basic skills in Taylor expansion for mathematical approximations
NEXT STEPS
  • Study the derivation of the distance of closest approach in Rutherford scattering
  • Learn about conserved quantities in classical mechanics
  • Explore Taylor expansion techniques for approximating functions
  • Investigate the relationship between impact parameter and scattering angles
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Physics students, educators, and researchers interested in classical mechanics, particularly those studying scattering phenomena and energy conservation principles.

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Homework Statement


What is the distance of closest approach in terms of the impact parameter and the limiting value of the speed as r tends to infinity?

Homework Equations


N/A


The Attempt at a Solution


This is not a h/w question, it's an equation I need to do my h/w...
 
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I'm guessing you're working out orbits of massive particles in GR. The key in these sorts of questions is conserved quantities. How far have you managed to get?
 
Hi, henry,
Actually this is not GR... It's more like Rutherford scattering... But your point still holds. Energy is conserved since it is motion in a conservative field. I'm supposed to use that equation to derive some approximations by Taylor expansion, etc.

Thanks
 
Last edited:

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