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Decay rate and lifetime of Z Boson

  1. Feb 23, 2013 #1
    What are the accepted numbers for the decay rate and lifetime of Z-> mu+mu- and Z-> e+e- decays??? also what is the unit for the decay rate??? thank you!
  2. jcsd
  3. Feb 23, 2013 #2

    Simon Bridge

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    Welcome to PF;
    The Z boson has an accepted half-life about 3×10-25 s

    If you happen to have a lot of them, then the decay rate can be computed from that.
  4. Feb 24, 2013 #3


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    Lifetime is a property of a particle, not a property of a decay channel.

    See the values given by the http://pdglive.lbl.gov/Rsummary-wait.brl?fsizein=1&nodein=S044 [Broken], it is the usual reference for any particle data.
    Last edited by a moderator: May 6, 2017
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