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Background rejection / data analysis

  1. Dec 1, 2015 #1
    Hi,

    How can one calculate background rejection from a background sample applying cuts ??
     
  2. jcsd
  3. Dec 1, 2015 #2

    Orodruin

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    Compare the number of sampled background events which pass the cuts to the total number of sampled background events.
     
  4. Dec 1, 2015 #3
    Hi,
    So what is background efficiency? Is background efficiency and background rejection are the same ?
     
  5. Dec 1, 2015 #4

    mfb

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    They are different ways to describe the same thing. If 5% of your background events pass the selection (1 out of 20), you have a background efficiency of 5% and a background rejection of 20.
     
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