Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Alternative Large Nc Schemes and Chiral Dynamics   We compare the dependences on the number of colors of the leading pion pion
scattering amplitudes using the single index quark field and two index quark
fields. These are seen to have different relationships to the scattering
amplitudes suggested by chiral dynamics which can explain the long puzzling
pion pion s wave scattering up to about 1 GeV. This may be interesting for
getting a better understanding of the large Nc approach as well as for
application to recently proposed technicolor models.

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The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
2
The categories of this paper are: math
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
1
The categories of this paper are: cs
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The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: econ
3
The categories of this paper are: physics
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The categories of this paper are: supr-con
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The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex