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Partial Wave Unitarity ?

  1. Mar 14, 2008 #1
    Partial Wave Unitarity ??

    Is there anyone who deals with "Partial Wave Unitarity" in Quantum Mechanics before??
  2. jcsd
  3. Mar 14, 2008 #2


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    "Partial wave unitarity" means that the largest possible scattering amplitude squared (|A|^2) for any partial wave is when sin^2(delta)=1, where delta is the phase shift.
    This means that |A|^2 is limited by 4 pi(2L+1)^2/k^2.
    That is for spinless particles. Spin factors come in otherwise.
    Many people deal with this.
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