Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Light-neutrino mass hierarchies, nuclear matrix elements, and the
  observability of neutrinoless double-beta decay   Results for neutrino flavor oscillations and neutrino mixing mechanisms,
obtained from the analysis of the Sudbury Neutrino Observatory (SNO), the
SuperKamiokande (SK), CHOOZ, KamLAND and WMAP data, are used to calculate the
effective neutrino mass relevant for the neutrinoless double-beta decay. The
observability of the decay of 76Ge is discussed within different light-neutrino
mass hierarchies and by presenting a systematics on the available nuclear
matrix elements.

35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom