Phys. Rev. D 16, 1791–1797 (1977)Constraints imposed by CP conservation in the presence of pseudoparticlesReceived 31 May 1977; published in the issue dated 15 September 1977 We elaborate on an earlier discussion of CP conservation of strong interactions which includes the effect of pseudoparticles. We discuss what happens in theories of the quantum-chromodynamics type when we include weak and electromagnetic interactions. We find that strong CP conservation remains a natural symmetry if the full Lagrangian possesses a chiral U(1) invariance. We illustrate our results by considering in detail a recent model of (weak) CP nonconservation. © 1977 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.16.1791
DOI:
10.1103/PhysRevD.16.1791
PACS:
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