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A question about Weisskopf-Wigner approximation

  1. May 10, 2015 #1
    What is the physical interpretation of the Weisskopf-Wigner approximation, when it is applied in the neutral kaon system?

    I would say that the approximation means that a decay state has a small probability to suffer a transition (or be "transformed") into another decay state through weak interaction. But I'm not sure about this.

    I would please like to know some references that can help me to understand better this approximation in the kaon system. I'm following the book "CP Puzzle " by Kabir

    Thanks in advance
     
  2. jcsd
  3. May 15, 2015 #2

    vanhees71

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    A very nice elementary treatment of precisely this issue can be found in

    Nachtmann, O.: Elementary Particle Physics - Concepts and Phenomenology, Springer-Verlag, 1990
     
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