Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: PSS: A FORM Program to Evaluate Pure Spinor Superspace Expressions   A FORM program which is used to efficiently expand in components pure spinor
superfield expressions of kinematic factors is presented and comments on how it
works are made. It is highly customizable using the standard features of FORM
and can be used to help obtaining superstring effective actions from the
scattering amplitudes computed with the pure spinor formalism.

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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
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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: eess
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: stat
10
The categories of this paper are: q-bio
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The categories of this paper are: funct-an