Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sensitivity and discovery potential of the proposed nEXO experiment to
  neutrinoless double beta decay   The next-generation Enriched Xenon Observatory (nEXO) is a proposed
experiment to search for neutrinoless double beta ($0\nu\beta\beta$) decay in
$^{136}$Xe with a target half-life sensitivity of approximately $10^{28}$ years
using $5\times10^3$ kg of isotopically enriched liquid-xenon in a time
projection chamber. This improvement of two orders of magnitude in sensitivity
over current limits is obtained by a significant increase of the $^{136}$Xe
mass, the monolithic and homogeneous configuration of the active medium, and
the multi-parameter measurements of the interactions enabled by the time
projection chamber. The detector concept and anticipated performance are
presented based upon demonstrated realizable background rates.

37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph