Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Energy and symmetry of $dd$ excitations in undoped layered cuprates
  measured by Cu $L_3$ resonant inelastic x-ray scattering
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
18
The categories of this paper are: econ
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin