Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The influence of pairing on the nuclear matrix elements of the
  neutrinoless double beta decays   We study in this letter the behavior of the neutrinoless double beta decay
nuclear matrix elements (NME's) in the framework of the Interacting Shell
Model. We analize them in terms of the total angular momentum of the decaying
neutron pair and as a function of the seniority truncations in the nuclear wave
functions. This point of view turns out to be very adequate to gauge the
accuracy of the NME's predicted by different nuclear structure models. In
addition, it gives back the due protagonism in this process to the pairing
interaction, the interaction which is responsible for the very existence of
double beta decay emitters. We show that low seniority approximations,
comparable to those implicit in the quasiparticle RPA in an spherical basis,
tend to overestimate the values of the NME's in several decays.

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The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
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The categories of this paper are: eess
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph