Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On spontaneous fission and alpha-decay half-lives of atomic nuclei   It is shown, that the Gamow-like model with only one adjustable parameter -
radius constant is able to reproduce well the alpha-decay half-lives for all
even-even nuclei with the proton number larger than 50. The systematics for
odd-A and odd-odd isotopes can be also well described when ones introduces an
additional hindrance factor. Similar model based on the W. J. Swiatecki idea
from 1955 is developed to reproduce the spontaneous fission half-lives of
transactinide nuclei. The achieved accuracy of reproduction of the data is
better than that obtained in more advanced theories.

24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol