Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superheavy Nuclei: Relativistic Mean Field Outlook   The analysis of quasiparticle spectra in heaviest $A\sim 250$ nuclei with
spectroscopic data provides an additional constraint for the choice of
effective interaction for the description of superheavy nuclei. It strongly
suggest that only the parametrizations of the relativistic mean field
Lagrangian which predict Z=120 and N=172 as shell closures are reliable for
superheavy nuclei. The influence of the central depression in the density
distribution of spherical superheavy nuclei on the shell structure is studied.
Large central depression produces large shell gaps at Z=120 and N=172. The
shell gaps at Z=126 and N=184 are favored by a flat density distribution in the
central part of nucleus. It is shown that approximate particle number
projection (PNP) by means of the Lipkin-Nogami method removes pairing collapse
seen at these gaps in the calculations without PNP.

9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci