Determining ν mass hierarchy by precise measurements of two m ² in ν<inf>e</inf> and ν<inf>μ</inf> disappearance experiments

Abstract:

In this paper, we discuss the possibility of determining the neutrino mass hierarchy by comparing the two effective atmospheric neutrino mass squared differences measured, respectively, in electron and in muon neutrino disappearance oscillation experiments. If the former is larger (smaller) than the latter, the mass hierarchy is of normal (inverted) type. We consider two very high precision (a few per mil) measurements of such mass squared differences by phase II of the T2K (Tokai-to-Kamioka) experiment and by the novel Mössbauer enhanced resonant absorption technique. Under optimistic assumptions for the systematic errors of both measurements, we determine the region of sensitivities where the mass hierarchy can be distinguished. Due to the tight space limitation, we present only the general idea and show a few most important plots. © 2006 The Royal Swedish Academy of Sciences.

Año de publicación:

2006

Keywords:

Fuente:

scopus