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I What is this equation?

  1. Sep 30, 2016 #1
    Could someone tell me what the attached equation is called, and just and brief description of what it states. I don't recognise it and it's hard to know where one goes to just look up an equation.

    Thanks image.jpeg
  2. jcsd
  3. Sep 30, 2016 #2


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    Staff: Mentor

    That's the differetial cross section being equal to the absolute value squared of the scattering amplitude. Look up "quantum scattering".
  4. Sep 30, 2016 #3
    Thanks - yes I thought it might have something to do with that.
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