Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New sum rules for nucleon and trinucleon total photoproduction
  cross-sections   Two new sum rules are derived relating Dirac radii and anomalous magnetic
moments of the considered strongly interacting fermions with the convergent
integral over a difference of the total proton and neutron, as well as $He^3$
and $H^3$, photoproduction cross-sections.

20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs