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Differential Cross Section

  1. Mar 20, 2010 #1
    What is physically meant by:

    [tex]\frac{d \sigma}{d \Omega}[/tex]

    Where [tex]\sigma[/tex] is the cross section and [tex]\Omega[/tex] is solid angle.
    I can't really picture it.
  2. jcsd
  3. Mar 20, 2010 #2
    Differential cross section [tex]\frac{d\sigma}{d\Omega}[/tex] tells you what is the probability that a particle decay with a certain solid angle.
  4. Mar 21, 2010 #3


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    If you multiply [tex]d\sigma/d\Omega[/tex] by the incident flux (number of particles per unit area) and by a small solid angle [tex]\Delta\omega[/tex], that gives the number of particles scattered into that solid angle.
    Last edited: Mar 21, 2010
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