Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the double-beta decay half-life and search for the
  neutrinoless double-beta decay of $^{48}{\rm Ca}$ with the NEMO-3 detector   The NEMO-3 experiment at the Modane Underground Laboratory has investigated
the double-$\beta$ decay of $^{48}{\rm Ca}$. Using $5.25$ yr of data recorded
with a $6.99\,{\rm g}$ sample of $^{48}{\rm Ca}$, approximately $150$
double-$\beta$ decay candidate events have been selected with a
signal-to-background ratio greater than $3$. The half-life for the two-neutrino
double-$\beta$ decay of $^{48}{\rm Ca}$ has been measured to be
$T^{2\nu}_{1/2}\,=\,[6.4\, ^{+0.7}_{-0.6}{\rm (stat.)} \, ^{+1.2}_{-0.9}{\rm
(syst.)}] \times 10^{19}\,{\rm yr}$. A search for neutrinoless double-$\beta$
decay of $^{48}{\rm Ca}$ yields a null result and a corresponding lower limit
on the half-life is found to be $T^{0\nu}_{1/2} > 2.0 \times 10^{22}\,{\rm yr}$
at $90\%$ confidence level, translating into an upper limit on the effective
Majorana neutrino mass of $< m_{\beta\beta} > < 6.0 - 26$ ${\rm eV}$, with the
range reflecting different nuclear matrix element calculations. Limits are also
set on models involving Majoron emission and right-handed currents.

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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: cs
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The categories of this paper are: econ
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ph
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The categories of this paper are: q-alg
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The categories of this paper are: nlin
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The categories of this paper are: mtrl-th
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The categories of this paper are: stat
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys