Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: K$^+$-nucleon interaction   The Born approximation to the quark-gluon-exchange mechanism for K$^+$N
scattering is used as a starting point to generate a potential for this system.
The valence quark wave function of the nucleon is generalized from a single
Gaussian to a sum of Gaussians in order to have a more flexible representation
than previous work. We obtain a potential derived from a valence density given
by lattice calculations. By comparing with a recent amplitude analysis it is
found that the strength of the quark-gluon based potential needs to be
increased by a factor of order 2-4 relative to the normalization given by more
traditional values of the governing parameters. The method is used to estimate
the change in effective K$^+$N amplitudes which would result from changes in
the valence quark distributions or strength of the interaction which might
arise from nuclear medium effects in K$^+$ scattering from nuclei.

33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs