Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Instanton Calculus in Deformed N=4 Super Yang-Mills Theories   We study the instanton effective action of four-dimensional deformed N=4
supersymmetric Yang-Mills theory in the presence of constant, self-dual
Ramond-Ramond (R-R) 3-form background in type IIB superstring theory. We
compare the instanton effective action with the low-energy effective action on
D(-1)-branes in the D3-D(-1) system in the same background. We find that
discrepancy appears at the second order of the R-R background, which was also
observed in deformed N=2 theory. This discrepancy is resolved if the action of
the deformed gauge theory is improved by introducing a term with
coordinate-dependent gauge coupling. We obtain the same deformed instanton
effective action from super Yang-Mills theory in ten-dimensional
Omega-background by dimensional reduction. We also discuss another type of R-R
3-form background which corresponds to massive deformations of the instanton
effective action.

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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
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The categories of this paper are: physics
37
The categories of this paper are: supr-con
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The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
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The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: hep-lat