Issue
EPL
Volume 85, Number 5, March 2009
Article Number 51002
Number of page(s) 6
Section The Physics of Elementary Particles and Fields
DOI http://dx.doi.org/10.1209/0295-5075/85/51002
Published online 17 March 2009
EPL, 85 (2009) 51002
DOI: 10.1209/0295-5075/85/51002

Statistical analysis of future neutrino mass experiments including neutrino-less double beta decay

W. Maneschg, A. Merle and W. Rodejohann

Max-Planck-Institut für Kernphysik - Postfach 10 39 80, 69029 Heidelberg, Germany, EU

werner.rodejohann@mpi-hd.mpg.de

received 8 December 2008; accepted in final form 11 February 2009; published March 2009
published online 17 March 2009

Abstract
We perform a statistical analysis with the prospective results of future experiments on neutrino-less double beta decay, direct searches for neutrino mass (KATRIN) and cosmological observations. Realistic errors are used and the nuclear matrix element uncertainty for neutrino-less double beta decay is also taken into account. Three benchmark scenarios are introduced, corresponding to quasi-degenerate, inverse hierarchical neutrinos, and an intermediate case. We investigate to what extent these scenarios can be reconstructed. Furthermore, we check the compatibility of the scenarios with the claimed evidence of neutrino-less double beta decay.

PACS
14.60.Pq - Neutrino mass and mixing.
23.40.-s - $\beta$ decay; double $\beta$ decay; electron and muon capture.

© EPLA 2009