Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An effective field theory approach to fermionic rotational bands in
  nuclei   We extend an effective field theory developed to describe rotational bands in
even-even nuclei to the odd-mass case. This organizes Bohr and Mottelson's
treatment of a particle coupled to a rotor as a model-independent expansion in
powers of the angular velocity of the overall system. We carry out this
expansion up to fourth order in the angular velocity and present results for
$^{99}$Tc, ${}^{159}$Dy, ${}^{167, 169}$Er, ${}^{167, 169}$Tm, ${}^{183}$W,
${}^{235}$U and ${}^{239}$Pu. In each case, the accuracy and breakdown scale of
the effective field theory can be understood based on the single-particle and
vibrational energy scales in that nucleus.

28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph