Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nucleon-nucleon interaction: Central potential and pion production   We show that the tail of the chiral two-pion exchange nucleon-nucleon
potential is proportional to the $\pi N$ scalar form factor and discuss how it
can be translated into effective scalar meson interactions. We then construct a
kernel for the process $NN\to\pi NN$, due to the exchange of two pions, which
may be used in either three body forces or pion production in NN scattering.
Our final expression involves a partial cancellation among three terms, due to
chiral symmetry, but the net result is still important. We also find that, at
large internucleon distances, the kernel has the same spatial dependence as the
central NN potential and we produce expressions relating these processes
directly.

23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ