English

Model of Soft CP Violation

High Energy Physics - Phenomenology 2009-11-07 v1

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 BB-meson sector) and a possibly anomalous branching ratio for the decay mode K+π++νˉνK^+\to \pi^++\bar{\nu} \nu.

Keywords

Cite

@article{arxiv.hep-ph/0103022,
  title  = {Model of Soft CP Violation},
  author = {Paul H. Frampton and Sheldon L. Glashow and Tadashi Yoshikawa},
  journal= {arXiv preprint arXiv:hep-ph/0103022},
  year   = {2009}
}

Comments

14 pages LaTeX, including five figures

R2 v1 2026-07-22T13:32:41.140Z