Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Elastic Charge Form Factors of $\pi$ and K Mesons   The elastic charge form factors of the charged $\pi$ and $K$ mesons are
calculated in modified impulse approximation using instant form of relativistic
Hamiltonian dynamics. Our approach gives pion and kaon electromagnetic form
factors in the large range of momentum transfer. The results are in good
agreement with the available data. Relativistic effects are large at all values
of momentum transfers. The pion and kaon form factors at large $Q^2$ depend
strongly on the choice of model. The experiments on pion form factor at large
momentum transfer planned at CEBAF will choose between such models. In the case
of kaon such a choosing may be performed only if supplemented by accurate
measurements of kaon MSR.

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The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: stat
29
The categories of this paper are: funct-an
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-th
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The categories of this paper are: cond-mat
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The categories of this paper are: econ
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The categories of this paper are: eess
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The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio