Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on the dispersive treatment of K -> pi pi with the kaon off-shell   It has been recently suggested that it is possible to calculate the effect of
final state interactions in K -> pi pi amplitudes by applying dispersive
methods to the amplitude with the kaon off-shell. We critically reexamine the
procedure, and point out the effects of the arbitrariness in the choice of the
off-shell field for the kaon.

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The categories of this paper are: math-ph
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The categories of this paper are: astro-ph
2
The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-ex