Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New limits on double-beta decay of $^{190}$Pt and $^{198}$Pt   A search for double-beta decay of $^{190}$Pt and $^{198}$Pt with emission of
$\gamma$-ray quanta was realized at the HADES underground laboratory with a 148
g platinum sample measured by two ultralow-background HPGe detectors over 8946
h. The isotopic composition of the platinum sample has been measured with high
precision using inductively coupled plasma mass spectrometry. New lower limits
for the half-lives of $^{190}$Pt relative to different channels and modes of
the decays were set on the level of $\lim T_{1/2}\sim 10^{14}-10^{16}$ yr. A
possible exact resonant $0\nu KN$ transition to the 1,2 1326.9 keV level of
$^{190}$Os is limited for the first time as $T_{1/2} \geq 2.5 \times10^{16}$
yr. A new lower limit on the double-beta decay of $^{198}$Pt to the first
excited level of $^{198}$Hg was set as $T_{1/2} \geq 3.2\times10^{19}$ yr, one
order of magnitude higher than the limit obtained in the previous experiment.

2
The categories of this paper are: math
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph