Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The strength of the analog and Gamow-Teller giant resonances and
  hindrance of the 2\nu\beta\beta -decay rate   An approach for describing the hindrance of the nuclear 2\nu\beta\beta-decay
amplitude is proposed. The approach is based on a new formula obtained by a
model-independent transformation of the initial expression for the amplitude.
This formula takes explicitly into account the hindrance of the decay-amplitude
due to the presence of the collective Gamow-Teller state. Calculations are
performed within the simplest version of the approach. Calculated and
experimental 2\nu\beta\beta halve-lives are compared for a wide range of
nuclei.

28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org