Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Meson mass spectrum using the Cayley-Dickson algebra   From an injective map between the mass of the meson 16-plet and the
eigenvalue of the right multiplication in the Cayley-Dickson algebra, we obtain
the mass formula as 2 m_{D_s} = m_{eta_c} + m_{eta'}, which is in excellent
agreement with experiment.

18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc