Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-07-13
Phys.Rev.D80:055031,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, 2 figures; Introduction extended, typos corrected, charged lepton sector of model 2 corrected; matches journal versi
Scientific paper
10.1103/PhysRevD.80.055031
We discuss the tension between discrete flavour symmetries and extended scalar sectors arising from lepton flavour violation experiments. The key point is that extended scalar sectors will generically lead to flavour changing neutral currents, which are strongly constrained by experiments. Due to the large parameter space in the scalar sector such models will, however, usually have no big problems with existing and future bounds (even though the models might be constrained). This changes considerably once a flavour symmetry is imposed in addition: Due to the symmetry, additional relations between the different couplings arise and cancellations become impossible in certain cases. The experimental bounds will then constrain the model severely and can easily exclude it. We consider two examples which show how these considerations are realized. The same logic should apply to a much wider class of models.
Adulpravitchai Adisorn
Lindner Manfred
Merle Alexander
No associations
LandOfFree
Confronting Flavour Symmetries and extended Scalar Sectors with Lepton Flavour Violation Bounds 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 Confronting Flavour Symmetries and extended Scalar Sectors with Lepton Flavour Violation Bounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Confronting Flavour Symmetries and extended Scalar Sectors with Lepton Flavour Violation Bounds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-100754