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Phys. Rev. Lett. 38, 1440–1443 (1977)

CP Conservation in the Presence of Pseudoparticles

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R. D. Peccei and Helen R. Quinn*
Institute of Theoretical Physics, Department of Physics, Stanford University, Stanford, California 94305

Received 31 March 1977; published in the issue dated 20 June 1977

We give an explanation of the 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.

© 1977 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.38.1440
DOI:
10.1103/PhysRevLett.38.1440
PACS:

*A. P. Sloan Foundation fellow. On leave from Physics Department, Harvard University, Cambridge, Mass. 02138.

 
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