Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relativistic symmetry in deformed nuclei by similarity renormalization
  group   The similarity renormalization group is used to transform a general Dirac
Hamiltonian into diagonal form. The diagonal Dirac operator consists of the
nonrelativistic term, the spin-orbit term, the dynamical term, and the
relativistic modification of kinetic energy, which are very useful to explore
the symmetries hidden in the Dirac Hamiltonian for any deformed system. As an
example, the relativistic symmetries in an axially deformed nucleus are
investigated by comparing the contributions of every term to the single
particle energies and their correlations with the deformation. The result shows
that the deformation considerably influences the spin-orbit interaction and
dynamical effect, which play a critical role in the relativistic symmetries and
its breaking.

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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol