Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Progress towards precision measurements of beta-decay correlation
  parameters using atom and ion traps   The correlations of the decay products following the beta decay of nuclei
have a long history of providing a low-energy probe of the fundamental
symmetries of our universe. Over half a century ago, the correlation of the
electrons following the decay of polarized 60Co demonstrated that parity is not
conserved in weak interactions. Today, the same basic idea continues to be
applied to search for physics beyond the standard model: make precision
measurements of correlation parameters and look for deviations compared to
their standard model predictions. Efforts to measure these parameters to the
0.1% level utilizing atom and ion trapping techniques are described.

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The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
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The categories of this paper are: adap-org