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Single proton life time?

  1. Aug 2, 2012 #1
    We know hydrogen atom is stable. Then, single proton is stable? Can we store it for a long time without decay?
    Do we have any related equation about particle stability?
    Last edited: Aug 2, 2012
  2. jcsd
  3. Aug 2, 2012 #2


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    It is currently unknown whether a proton is stable or not. We have never observed one to decay, but it could be either case.
  4. Aug 2, 2012 #3


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    In the standard model the proton is stable, but there are various GUT proposals which predict proton decay. Simple models like SU(5) and SO(10) have been ruled out experimentally b/c of the measured minimum proton lifetime; other's are still allowed.
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