Adding flavour to twistor strings

TL;DR

This paper investigates the twistor dual description of N=2 UV-finite super-Yang-Mills theories with fundamental flavour by incorporating flavour branes into the topological B-model on super-twistor space, matching amplitudes to support the correspondence.

Contribution

It introduces a novel way to include fundamental flavours in twistor string theory using flavour branes, expanding the duality framework.

Findings

Matching amplitudes between twistor string theory and super-Yang-Mills theories.

Evidence supporting the twistor dual description with flavour branes.

Insights into the role of flavour branes in topological B-models.

Abstract

Twistor string theory is known to describe a wide variety of field theories at tree-level and has proved extremely useful in making substantial progress in perturbative gauge theory. We explore the twistor dual description of a class of N=2 UV-finite super-Yang-Mills theories with fundamental flavour by adding 'flavour' branes to the topological B-model on super-twistor space and comment on the appearance of these objects. Evidence for the correspondence is provided by matching amplitudes on both sides.