Phys. Rev. Lett. 87, 011801 (2001) [4 pages]Model of Soft CP Violation Using Scalars with Quark Number TwoReceived 2 March 2001; published 14 June 2001 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 (i.e., no observable direct CP violation in the B-meson sector) and a possibly anomalous branching ratio for the decay mode K+→π++ν̅ ν. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.011801
DOI:
10.1103/PhysRevLett.87.011801
PACS:
11.30.Er, 14.80.-j
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