Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beta decay of r-process waiting-point nuclei in a self-consistent
  approach   Beta-decay rates for spherical neutron-rich r-process waiting-point nuclei
are calculated within a fully self-consistent Quasiparticle Random-Phase
Approximation, formulated in the Hartree-Fock-Bogolyubov canonical
single-particle basis. The same Skyrme force is used everywhere in the
calculation except in the proton-neutron particle-particle channel, where a
finite-range force is consistently employed. In all but the heaviest nuclei,
the resulting half-lives are usually shorter by factors of 2 to 5 than those of
calculations that ignore the proton-neutron particle-particle interaction. The
shorter half-lives alter predictions for the abundance distribution of
r-process elements and for the time it takes to synthesize them.

27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga