CP Conservation in the Presence of Pseudoparticles
@article{Peccei1977CPCI,
title={CP Conservation in the Presence of Pseudoparticles},
author={Roberto D. Peccei and Helen R. Quinn},
journal={Physical Review Letters},
year={1977},
volume={38},
pages={1440-1443}
}We give an explanation of the $\mathrm{CP}$ conservation of strong interactions which includes the effects of pseudoparticles. We find it is a natural result for any theory where at least one flavor of fermion acquires its mass through a Yukawa coupling to a scalar field which has nonvanishing vacuum expectation value.
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Work supported in part by National Science Foundation Grants No. PHY 75-18444 and No
- Work supported in part by National Science Foundation Grants No. PHY 75-18444 and No
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This fact has been previously discussed in other contexts by L. Schulman, Phys. Bev
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Bjorken for useful discussions
- Bjorken for useful discussions