Two Higgs Bi-doublet Left-Right Model With Spontaneous P and CP Violation

Abstract

A left-right symmetric model with two Higgs bi-doublet is shown to be a consistent model for both spontaneous P and CP violation. The flavor changing neutral currents can be suppressed by the mechanism of approximate global U(1) family symmetry. We calculate the constraints from neural $K$ meson mass difference $\Delta m_K$ and demonstrate that a right-handed gauge boson $W_2$ contribution in box-diagrams with mass well below 1 TeV is allowed due to a cancellation caused by a light charged Higgs boson with a mass range $150\sim 300$ GeV. The $W_2$ contribution to ${\epsilon }_K$ can be suppressed from appropriate choice of additional CP phases appearing in the right-handed Cabbibo-Kobayashi-Maskawa matrix. The model is also found to be fully consistent with $B^0$ mass difference $\Delta m_B$, and the mixing-induced CP violation quantity $\sin 2{\beta }_{J/\psi }$, which is usually difficult for the model with only one Higgs bi-doublet. The new physics beyond the standard model can be directly searched at the colliders LHC and ILC.

25 pages, 6 figures, typos corrected, 1 figure added, published version

References in corpus (4)

• Right-Handed Quark Mixings in Minimal Left-Right Symmetric Model with General CP Violation
• Lepton Flavour Violating tau Decays in the Left-Right Symmetric Model
• Implications of new data in charmless B decays
• Exclusive $B\to PV$ Decays and CP Violation in the General two-Higgs-doublet Model

Cited by in corpus (2)

• Gauge-singlet dark matter in a left-right symmetric model with spontaneous CP violation
• Testing Spontaneous Parity Violation at the LHC