Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Twistor String Theories revisited   A gauged version of Berkovits twistor string theory featuring the particle
content of N=8 supergravity was suggested by Abou-Zeid, Hull and Mason. The
equations of motion for a particular multiplet in the modified theory are
examined on the level of basic twistor fields and thereby shown to imply the
vanishing of the negative helicity graviton on-shell. Additionally, the
restrictions emerging from the equation of motion for the new gauge field
\bar{B} reveal the chiral nature of interactions in theories constructed in
this manner. Moreover, a particular amplitude in Berkovits open string theory
is shown to be in agreement with the corresponding result in Einstein gravity.

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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: nlin
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The categories of this paper are: cs
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
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The categories of this paper are: math
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The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th