Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spectral Content of 22Na/44Ti Decay Data: Implications for a Solar
  Influence   We report a reanalysis of data on the measured decay rate ratio
$^{22}$Na/$^{44}$Ti which were originally published by Norman et al., and
interpreted as supporting the conventional hypothesis that nuclear decay rates
are constant and not affected by outside influences. We find upon a more
detailed analysis of both the amplitude and the phase of the Norman data that
they actually favor the presence of an annual variation in $^{22}$Na/$^{44}$Ti,
albeit weakly. Moreover, this conclusion holds for a broad range of parameters
describing the amplitude and phase of an annual sinusoidal variation in these
data. The results from this and related analyses underscore the growing
importance of phase considerations in understanding the possible influence of
the Sun on nuclear decays. Our conclusions with respect to the phase of the
Norman data are consistent with independent analyses of solar neutrino data
obtained at Super-Kamiokande-I and the Sudbury Neutrino Observatory (SNO).

23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics