Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analysis of Ten Years of Radon-Chain Decay Measurements: Evidence of
  Solar Influences and Inferences Concerning Solar Internal Structure and the
  Role of Neutrinos   Gamma radiation associated with radon decay exhibits variations in both time
of year and time of day. The annual oscillation has its maximum value in June,
suggestive of a galactic influence. Measurements made at midnight show strong
evidence of an influence of solar rotation, but measurements made at noon do
not. We find several pairs of oscillations with frequencies separated by 1
cycle per year that is suggestive of an influence of rotation that is oblique
with respect to the normal to the ecliptic. We suggest that beta decays may be
stimulated by neutrinos and that the decay products tend to travel in the same
direction as the neutrinos. We estimate the relevant cross section.

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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc