Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-01-28
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, harvmac
Scientific paper
Mixing between light and heavy neutrino states has been proposed as an explanation (or partial explanation) for the 3-sigma NuTeV anomaly and the 2-sigma departure of the $Z^0$ invisible width from its expected value. I assume herein that neutrino masses and mixings result from the conventional seesaw mechanism involving six chiral neutrino states, the first three being members of weak doublets, the others weak singlets. A finely-tuned choice of both the (bare) Majorana masses and the (Higgs-induced) Dirac masses can fit solar and atmospheric neutrino data and also result in significant (but necessarily flavor-dependent) mixing between singlet and doublet states such as would yield detectable suppression of light neutrino interaction amplitudes. The possibility for this kind of suppressive mixing is constrained by the observed upper limit on radiative muon decay.
No associations
LandOfFree
Neutrinos with Seesaw Masses and Suppressed Interactions 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 Neutrinos with Seesaw Masses and Suppressed Interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutrinos with Seesaw Masses and Suppressed Interactions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-317224