Solving the Strong CP Problem with Discrete Symmetries and the Right Unitarity 
Triangle

Antusch, Stefan; Holthausen, Martin; Schmidt, Michael A.; Spinrath, Martin

doi:10.1016/j.nuclphysb.2013.10.028

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Solving the Strong CP Problem with Discrete Symmetries and the Right Unitarity Triangle

MPS-Authors

/persons/resource/persons30612

Holthausen, Martin
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

External Resource

http://dx.doi.org/10.1016/j.nuclphysb.2013.10.028
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

1307.0710.pdf
(Preprint), 445KB

Supplementary Material (public)

There is no public supplementary material available

Citation

Antusch, S., Holthausen, M., Schmidt, M. A., & Spinrath, M. (2013). Solving the Strong CP Problem with Discrete Symmetries and the Right Unitarity Triangle. Nuclear Physics B, 877(3), 752-771. doi:10.1016/j.nuclphysb.2013.10.028.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0014-B55B-0

Abstract

We present a solution to the strong CP problem based on spontaneous CP violation and discrete family symmetries. The model predicts in a natural way the almost right-angled quark unitarity triangle angle ($\alpha \simeq 90^\circ$) by making the entries of the quark mass matrices either real or imaginary. By this choice the determinants of the mass matrices are rendered real and hence the strong CP phase vanishes. We present a toy model for the quark sector that demonstrates the viability of our approach.