Model of soft CP violation using scalars with quark number two - art. no. 011801

Citation
Ph. Frampton et al., Model of soft CP violation using scalars with quark number two - art. no. 011801, PHYS REV L, 8701(1), 2001, pp. 1801-NIL_35
Citations number
21
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8701
Issue
1
Year of publication
2001
Pages
1801 - NIL_35
Database
ISI
SICI code
0031-9007(20010702)8701:1<1801:MOSCVU>2.0.ZU;2-E
Abstract
We propose a model of soft CP violation that evades the strong CP problem a nd can describe observed CP violation in the neutral kaon sector, both dire ct and indirect. Our model requires two "duark" mesons carrying quark numbe r two that have complex (CP-violating) bare masses and are coupled to quark pairs. Aside from the existence of these potentially observable new partic les with masses of several hundred GeV, we predict a flat unitarity triangl e (i.e., no observable direct CP violation in the B-meson sector) and a pos sibly anomalous branching ratio for the decay mode K+ --> pi (+) + <(<nu>)o ver bar>nu.