Model of Soft CP Violation

Abstract

We propose a model of soft CP violation that evades the strong CP problem and can describe observed CP violation in the neutral kaon sector, both direct and indirect. Our model requires two ``duark'' mesons carrying quark number two that have complex (CP-violating) bare masses and are coupled to quark pairs. Aside from the existence of these potentially observable new particles with masses of several hundred GeV, we predict a flat unitarity triangle ({\it i.e.,} no observable direct CP violation in the $B$-meson sector) and a possibly anomalous branching ratio for the decay mode $K^{+}\to {\pi }^{+}+\bar{\nu }\nu$.

14 pages LaTeX, including five figures

References in corpus (2)

• Measurement of CP-violating asymmetries in B0 decays to CP eigenstates
• Measurement of the CP Violation Parameter sin(2phi_1) in B^0_d Meson Decays

Cited by in corpus (4)

• How natural is a small \barθin left-right SUSY models ?
• Resonant Production of Scalar Diquarks at the Next Generation Electron-Positron Colliders
• Sufficiently Small $\bar{\theta }$ in $SU(3{)}^3\times S_3$ Unification Model
• Spontaneous CP Violation: Alternative to the Standard Model