The Seesaw Mechanism in Quark-Lepton Complementarity

Details The Seesaw Mechanism in Quark-Lepton Complementarity The Seesaw Mechanism in Quark-Lepton Complementarity

2007-07-17

arxiv.org/abs/0707.2379v2

Phys.Rev.D76:113003,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

40 pages, 9 figures, 5 tables. Several typos corrected and references added, final version to appear in PRD. A complete list o

Scientific paper

10.1103/PhysRevD.76.113003

We systematically construct realistic mass matrices for the type-I seesaw mechanism out of more than 20 trillion possibilities. We use only very generic assumptions from extended quark-lepton complementarity, i.e., the leptonic mixing angles between flavor and mass eigenstates are either maximal, or parameterized by a single small quantity epsilon that is of the order of the Cabibbo angle epsilon theta_C. The small quantity epsilon also describes all fermion mass hierarchies. We show that special cases often considered in the literature, such as having a symmetric Dirac mass matrix or small mixing among charged leptons, constitute only a tiny fraction of our possibilities. Moreover, we find that in most cases the spectrum of right-handed neutrino masses is only mildly hierarchical. As a result, we provide for the charged leptons and neutrinos a selected list of 1981 qualitatively different Yukawa coupling matrices (or textures) that are parameterized by the Cabibbo angle and allow for a perfect fit to current data. In addition, we also briefly show how the textures could be generated in explicit models from flavor symmetries.

Affiliated with

Also associated with

No associations

Rating

The Seesaw Mechanism in Quark-Lepton Complementarity 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 The Seesaw Mechanism in Quark-Lepton Complementarity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Seesaw Mechanism in Quark-Lepton Complementarity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-561682