Sources of CP Violation in the Two-Higgs Doublet Model

Details Sources of CP Violation in the Two-Higgs Doublet Model Sources of CP Violation in the Two-Higgs Doublet Model

1994-09-27

arxiv.org/abs/hep-ph/9409421v1

Phys.Rev.Lett.73:1762-1764,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, RevTex, (appear in Phys. Rev. Lett. 73, (1994) 1762 ), CMU-HEP94-18

Scientific paper

10.1103/PhysRevLett.73.1762

Assuming CP violation arises solely through the Higgs potential, we develop the most general two-Higgs doublet model. There is no discrete symmetry that distinguishes the two Higgs bosons. It is assumed that an approximate global family symmetry sufficiently suppresses flavor-changing neutral scalar interactions. In addition to a CKM phase, neutral boson mixing, and superweak effects, there can be significant CP violation due to charged Higgs boson exchange. The value of $\epsilon'/\epsilon$ due to this last effect could be as large as in the standard model.

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