Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Examinations of the consistency of the quasiparticle random-phase
  approximation approach to double-$\beta$ decay of $^{48}$Ca   The nuclear matrix elements (NMEs) of the neutrinoless and two-neutrino
double-$\beta$ decays of $^{48}$Ca are calculated by the quasiparticle
random-phase approximation (QRPA) with emphasis on the consistency examinations
of this calculation method. The main new examination points are the consistency
of two ways to treat the intermediate-state energies in the two-neutrino
double-$\beta$ NME and comparison with the experimental charge-exchange
strength functions obtained from $^{48}$Ca$(p,n)$ and $^{48}$Ti$(n,p)$
reactions. No decisive problem preventing the QRPA approach is found. The
obtained neutrinoless double-$\beta$ NME adjusted by the ratio of the effective
and bare axial-vector current couplings is lowest in those calculated by
several groups and close to one of the QRPA values obtained by another group.

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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: math
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The categories of this paper are: bayes-an
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The categories of this paper are: nlin
18
The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys