Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deformed shell model results for two neutrino positron double beta decay
  of $^{74}$Se   Half-lives $T_{1/2}^{2\nu}$ for two neutrino positron double beta decay modes
$\beta^{+}$EC/ECEC are calculated for $^{74}$Se, a nucleus of current
experimental interest, using deformed shell model based on Hartree-Fock states
employing a modified Kuo interaction in ($^{2}p_{3/2}$, $^{1}f_{5/2}$,
$^{2}p_{1/2}$, $^{1}g_{9/2}$) space. The calculated half-life for the ECEC mode
is $\sim 10^{26}$yr and it may be possible to observe this in the near future
with improved sensitivity of experiments.

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The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
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The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
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The categories of this paper are: eess
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
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The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex