Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Beta decay and CPT symmetry

  1. Jun 19, 2016 #1
    I read that CP-symmetry violation occurs (or can occur) in beta decay. Does that mean that, since CPT-symmetry must hold, there is no T-symmetry?
  2. jcsd
  3. Jun 19, 2016 #2

    Paul Colby

    User Avatar
    Gold Member

    yes, within LQFT which appears to be our most complete theory.
  4. Jun 20, 2016 #3


    User Avatar
    Science Advisor
    Gold Member
    2017 Award

    One should note that the violation of P, CP, and T symmetry are all shown directly by observation, most recently the T violation in B decays by the BABAR collaboration. I'm to lazy to google for it. The usual kind of relativistic QT, i.e., local relativistic QFT with a stable ground state, predicts CPT invariance, which so far has not been observerd to be violated.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted