Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-resolution conversion electron spectroscopy of the 125I
  electron-capture decay   The conversion electrons from the decay of the 35.5-keV excited state of
125Te following the electron capture decay of 125I have been investigated at
high resolution using an electrostatic spectrometer. The penetration parameter
lambda = -1.2(6) and mixing ratio |delta| = 0.015(2) were deduced by fitting to
literature values and present data. The shake probability of the conversion
electrons is estimated to be 0.5, more than two times larger than the predicted
value of 0.2.

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The categories of this paper are: stat
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
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The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg