Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The $[{\bf 70},1^-]$ baryon multiplet in the $1/N_c$ expansion revisited   The mass splittings of the baryons belonging to the $[{\bf 70},1^-]$-plet are
derived by using a simple group theoretical approach to the matrix elements of
the mass formula. The basic conclusion is that the first order correction to
the baryon masses is of order $1/N_c$ instead of order $N^0_c$, as previously
found. The conceptual difference between the ground state and the excited
states is therefore removed.

34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph