GL(1) Charged States in Twistor String Theory

Details GL(1) Charged States in Twistor String Theory GL(1) Charged States in Twistor String Theory

2005-01-27

arxiv.org/abs/hep-th/0501219v3

Phys.Lett. B611 (2005) 173-181

Physics

High Energy Physics

High Energy Physics - Theory

12 pages BRST-invariant picture-changing operators for the $u-v$ ghost system derived, typos corrected acknowledgements added

Scientific paper

10.1016/j.physletb.2005.02.014

We discuss the appearance of the GL(1) charged physical operators in the twistor string theory. These operators are shown to be BRST-invariant and non-trivial, and some of their correlators and conformal beta-functions are computed. Remarkably, the non-conservation of the GL(1)-charge in interactions involving these operators is related to the anomalous term in the Kac-Moody current algebra. While these operators play no role in the maximum helicity violating (MHV) amplitudes of Yang-Mills theory, they are shown to contribute non-trivially to non-MHV correlators in the worldsheet instanton backgrounds. We argue that these operators describe the non-perturbative dynamics of solitons in conformal supergravity. However, the exact form of such solitonic solutions is yet to be determined.

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