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Why does some reactions do't go to the fundamental state?

  1. Jan 19, 2016 #1
    Hi everybody, after studyng a little bit of nuclear physics I have noticed that many reactions (α,β,γ...) end with the new particles in excited states which rea¡main in those for a little time before going to the fundamental.

    I don't know why this happens instead of going directly to the fundamental state.

    Can someone please tell me why this happens?

    Thank you very much.
  2. jcsd
  3. Jan 19, 2016 #2


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    Staff: Mentor

    Usually, both reactions are possible. The more likely one depends on things like spin, transition energy and sometimes a few other factors. Why would you expect some transitions to be impossible?
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