de.mpg.escidoc.pubman.appbase.FacesBean
English
 
Help Guide Disclaimer Contact us Login
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

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

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons30612

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

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: http://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.