Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiative Emission of Neutrino Pairs in Atoms and Light Sterile
  Neutrinos   The process of Radiative Emission of Neutrino Pair (RENP) in atoms is
sensitive to the absolute neutrino mass scale, the type of spectrum neutrino
masses obey and the nature - Dirac or Majorana - of massive neutrinos. We
analyse the possibility to test the hypothesis of existence of neutrinos with
masses at the eV scale coupled to the electron in the weak charged lepton
current in an RENP experiment. The presence of eV scale neutrinos in the
neutrino mixing is associated with the existence of sterile neutrinos which mix
with the active flavour neutrinos. At present there are a number of hints for
active-sterile neutrino oscillations driven by $\Delta m^2 \sim 1~{\rm eV^2}$.
We perform a detailed analysis of the RENP phenomenology within the "3 + 1"
scheme with one sterile neutrino.

32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math