Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pion-nucleon charge-exchange amplitudes above 2 GeV   The amplitudes for the pion-nucleon charge exchange reaction of the
Karlsruhe-Helsinki and the George-Washington-University partial wave analyses
are compared with those of a Regge-cut model with the aim to explore the
possibility to provide high energy constraints for theoretical baryon resonance
analyses in the energy region above 2 GeV.

26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat