Running Neutrino Mass Parameters in See-Saw Scenarios
Abstract
We systematically analyze quantum corrections in see-saw scenarios, including effects from above the see-saw scales. We derive approximate renormalization group equations for neutrino masses, lepton mixings and CP phases, yielding an analytic understanding and a simple estimate of the size of the effects. Even for hierarchical masses, they often exceed the precision of future experiments. Furthermore, we provide a software package allowing for a convenient numerical renormalization group analysis, with heavy singlets being integrated out successively at their mass thresholds. We also discuss applications to model building and related topics.
Cite
@article{arxiv.hep-ph/0501272,
title = {Running Neutrino Mass Parameters in See-Saw Scenarios},
author = {Stefan Antusch and Joern Kersten and Manfred Lindner and Michael Ratz and Michael Andreas Schmidt},
journal= {arXiv preprint arXiv:hep-ph/0501272},
year = {2009}
}
Comments
49 pages, 9 figures; minor corrections in Sec. 6.5.1; the accompanying software packages REAP/MPT can be downloaded from http://www.ph.tum.de/~rge