Calculation of scattering amplitude ratio for two different angles

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SUMMARY

The discussion focuses on calculating the scattering amplitude ratio for two angles, specifically f(theta=0) and f(theta=pi/2). The scattering amplitude is defined as f(theta) = summation over l(from 0 to infinity)(2l+1)/k exp(i(phi))sin(phi) Pl(cos theta). It is established that for all odd l, the scattering amplitude equals 0 when cos(theta) = 0, which directly affects the calculation of the ratio. The value of the Legendre polynomial Pl(0) is also a critical point of inquiry.

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  • Understanding of scattering amplitude and its mathematical representation
  • Familiarity with Legendre polynomials and their properties
  • Knowledge of summation notation and series convergence
  • Basic concepts of angular functions in physics
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Hi all, since scattering amplitude is given as:
f(theta) = summation over l(from o to infinity)(2l+1)/k exp(i(phi))sin(phi) Pl(cos theta).But what happen if i want to calculate the ratio of f(theta=0)/f(theta = pi/2).
Can anyone tell me the value of Pl(0).
Thanks
 
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