Orbifolding the twistor string

The D-instanton expansion of the topological B-model on the supermanifold CP ( 3 | 4 ) reproduces the perturbative expansion of N = 4 super-Yang–Mills theory. In this paper we consider orbifolds in the fermionic directions of CP ( 3 | 4 ) . This operation breaks the SU ( 4 ) R R-symmetry group, redu...

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Published in:Nuclear physics. B 2005-07, Vol.719 (1), p.234-252
Main Authors: Giombi, S., Kulaxizi, M., Ricci, R., Robles-Llana, D., Trancanelli, D., Zoubos, K.
Format: Article
Language:English
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Summary:The D-instanton expansion of the topological B-model on the supermanifold CP ( 3 | 4 ) reproduces the perturbative expansion of N = 4 super-Yang–Mills theory. In this paper we consider orbifolds in the fermionic directions of CP ( 3 | 4 ) . This operation breaks the SU ( 4 ) R R-symmetry group, reducing the amount of supersymmetry of the gauge theory. As specific examples we take N = 1 and N = 2 orbifolds and obtain the corresponding superconformal quiver theories. We discuss the D1 instanton expansion in this context and explicitly compute some amplitudes.
ISSN:0550-3213
1873-1562
DOI:10.1016/j.nuclphysb.2005.04.037