Spontaneous CP Violation: Alternative to the Standard Model

Details Spontaneous CP Violation: Alternative to the Standard Model Spontaneous CP Violation: Alternative to the Standard Model

2001-07-23

arxiv.org/abs/hep-ph/0107240v1

Int.J.Mod.Phys. A17S1 (2002) 47-57

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages LaTeX including four figures. Invited talk at 2001: A Spacetime Odyssey. The Inaugural Conference of the Michigan Cen

Scientific paper

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 $K^+\to \pi^++\bar{\nu} \nu$.

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