Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New generation of double beta decay experiments: are there any
  limitations?   New generation experiments on search for neutrinoless double beta decay with
sensitivity to effective Majorana neutrino mass on the level $\sim$ 3-5 meV is
discussed. Possible restrictions at achievement of this purpose (possibility to
produce big amount of enriched isotopes, possibility to reach very low
background level, energy resolution and possible cost of experiments) are
considered. It is shown that for realization of so ambitious project 10 tons
(or more) of enriched isotope is required. Background index should be on the
level $\le$ 10$^{-5}-10^{-6}$ c/kg$\cdot$ keV$\cdot$ y. Besides, the energy
resolution of the detector should be not worse than 1-2%. It is shown that
$^{130}$TeO$_2$ low temperature bolometer looks as the most realistic candidate
for such experiments. Under some conditions experiments with $^{76}$Ge,
$^{100}$Mo and $^{136}$Xe can be realized too.

16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom