CP violation in the two-Higgs-doublet model: an example

Abstract

In a general two-scalar-doublet model without fermions, there is a unique source of CP violation, $J_1$, in the gauge interactions of the scalars. It arises in the mixing of the three neutral physical scalars $X_1$, $X_2$ and $X_3$. CP violation may be observed via different decay rates for $X_1\to H^{+}{W}^{-}$ and $X_1\to H^{-}{W}^{+}$ (or, alternatively, for $H^{+}\to X_1{W}^{+}$ and $H^{-}\to X_1{W}^{-}$ --- depending on which decays are kinematically allowed). I compute the part of those CP-violating decay-rate differences which is proportional to $J_1$. The CP-invariant final-state-interaction phase is provided by the absorptive parts of the one-loop diagrams. I check the gauge invariance of the whole calculation.

13 pages LATEX, a bunch of figures that I can mail to you if you ask me as soon as you finish reading this (because afterwards I'll be in vacation)

References in corpus (8)

• Standard Model CP-violation and Baryon asymmetry
• Fundamental CP-violating quantities in a SU(2)$\otimes$U(1) model with many Higgs doublets
• Using Back-Scattered Laser Beams to Detect CP Violation in the Neutral Higgs Sector
• Probing CP Violation Via Higgs Decays to Four Leptons
• CP Violation in the Decay of Neutral Higgs Boson into $t-\bar{t}$ or $W^{+}-W^{-}$
• CP-odd Neutral Higgs Effects in Top -- anti-Top Production
• CP-Violation in Bosonic Sector of SM with two Higgs Doublets
• CP-Violation with Bosons

Cited by in corpus (3)

• Higgs Bosons in the Minimal Supersymmetric Standard Model with Explicit CP Violation
• Supersymmetry through CP violation in $H^{\pm }\to W^{\pm }{h}^0$
• Using Spin Correlations to Distinguish Zh from ZA at the International Linear Collider