Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Double Beta Decay Constraint on Composite Neutrinos   Neutrinoless double beta decay occurs through the magnetic coupling of
dimension five, $\lambda_W/m_{\nu*}$, among the excited electron neutrino
$\nu^*$, electron and $W$ boson if $\nu^*$ is a massive Majorana neutrino.
(\lambda_W m_W / m_{\nu*}^2 |\frac{(m_*/m_W) +2}{(m_*/m_W +1)^2}
-0.129{m_*/m_W} | <2.13\times 10^{-2}, where $\lambda_W$ is the relative
strength, $m_{\nu*}$ is the composite scale and $m_*$ is the mass of excited
neutrino. If the coupling is not small, i.e., $\lambda_W>1$ and $m_{\nu*}=m_*$,
we find $m_*>3.4 m_W$.

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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
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The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
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The categories of this paper are: econ
10
The categories of this paper are: q-bio
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The categories of this paper are: stat