Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-12-17
Phys.Lett. B586 (2004) 83-94
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, no figures. Revised version to appear in Physics Letters B
Scientific paper
10.1016/j.physletb.2004.01.087
We highlight the important role that canonical normalisation of kinetic terms in flavour models based on family symmetries can play in determining the Yukawa matrices. Even though the kinetic terms may be correctly canonically normalised to begin with, they will inevitably be driven into a non-canonical form by a similar operator expansion to that which determines the Yukawa operators. Therefore in models based on family symmetry canonical re-normalisation is mandatory before the physical Yukawa matrices can be extracted. In nearly all examples in the literature this is not done. As an example we perform an explicit calculation of such mixing associated with canonical normalisation of the Kahler metric in a supersymmetric model based on SU(3) family symmetry, where we show that such effects can significantly change the form of the Yukawa matrix. In principle quark mixing could originate entirely from canonical normalisation, with only diagonal Yukawa couplings before canonical normalisation.
King Steve F.
Peddie Iain N. R.
No associations
LandOfFree
Canonical normalisation and Yukawa matrices does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Canonical normalisation and Yukawa matrices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Canonical normalisation and Yukawa matrices will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-592410