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CPT Invariance and Weak Interactions

J. P. Hsu*

  • Institute of Theoretical Physics, McGill University, Montreal, Canada

  • *Present address: Department of Physics, Rutgers, The State University, New Brunswick, N. J. 08903.
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Phys. Rev. D 5, 981 – Published 15 February, 1972Erratum Phys. Rev. D 6, 1813 (1972)

DOI: https://doi.org/10.1103/PhysRevD.5.981

Abstract

The pure leptonic and semileptonic weak interactions, together with the possible violation of CPT invariance, are studied by explicitly constructing a model of weak interactions. At low energies, we have the Fermi effective Lagrangian. The divergences in the model are no worse than those in the well-known renormalizable theories. The model suggests that if CPT invariance is violated in the weak interactions, so is Lorentz invariance. Furthermore, CPT violation cannot be detected by measuring the difference of lifetime, mass, or magnetic moment between the usually observed particle and antiparticle. It should be tested by measuring the deviation of the particle lifetime at high energies. Experimentally, the lifetimes of the charged kaon and the muon appear to be shorter at higher energies, as predicted by the model. The model is in agreement with the known experiments and gives many specific predictions.

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Erratum

CPT Invariance and Weak Interactions

J. P. Hsu
Phys. Rev. D 6, 1813 (1972)

Comments & Replies

Comment on experimental tests of CPT invariance

J. P. Hsu
Phys. Rev. D 9, 304 (1974)

References (10)

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  6. Omitted endnote

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  9. Omitted endnote

  10. [2] J. Goldstone, A. Salam, and S. Weinberg, Phys. Rev. 127, 965 (1962)

Outline

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Phys. Rev. D 5, 981– Published 15 February, 1972
  • Received 4 August 1971

© 1972 American Physical Society

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