Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Branching Ratios for the Three Most Intense Gamma Rays in the Decay of
  $^{47}$Ca   A sample of $^{47}$Ca produced through isotope harvesting at the National
Superconducting Cyclotron Laboratory was used to measure branching ratios of
7.17(5)%, 7.11(5)%, and 75.0(5)% for the 489.2, 807.9, and 1297.1 keV
characteristic gamma-rays, respectively. Based on these updated branching
ratios, the ground state to ground state $^{47}$Ca to $^{47}$Sc beta decay
branching ratio has been indirectly measured as 17.7(5)% and the ground state
to 1297.1 keV excited state as 82.2(5)%. These values represent a greatly
increased precision for all five branching ratios compared to the currently
accepted values. The measurements presented here were made relative to the
ingrown $^{47}$Sc daughter in a $^{47}$Ca sample and the well-established 159.4
keV gamma-ray branching ratio and the half-life for the decay of $^{47}$Sc.
These measurements were supported by verifying that the half-lives measured
from characteristic gamma-ray peaks over multiple spectra for both $^{47}$Ca
and $^{47}$Sc were consistent with previously reported values. Additionally,
the half-lives of both $^{47}$Ca and $^{47}$Sc were independently measured with
Liquid Scintillation Counting to reverify the previously reported values used
in this study to find updated gamma-ray branching ratio values.

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The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat