Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective field theory for collective rotations and vibrations of
  triaxially deformed nuclei   The effective field theory (EFT) for triaxially deformed even-even nuclei is
generalized to include the vibrational degrees of freedom. The pertinent
Hamiltonian is constructed up to next-to-leading order. The leading order part
describes the vibrational motion, and the NLO part couples rotations to
vibrations. The applicability of the EFT Hamiltonian is examined through the
description of the energy spectra of the ground state bands, $\gamma$-bands,
and $K=4$ bands in the $^{108, 110, 112}$Ru isotopes. It is found that by
taking into account the vibrational degrees of freedom, the deviations for
high-spin states in the $\gamma$-band observed in the EFT with only rotational
degrees of freedom disappear. This supports the importance of including
vibrational degrees of freedom in the EFT formulation for the collective motion
of triaxially deformed nuclei.

18
The categories of this paper are: econ
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess