Yangian in the Twistor String

Details Yangian in the Twistor String Yangian in the Twistor String

2010-08-02

arxiv.org/abs/1008.0302v1

JHEP 1010:076,2010

Physics

High Energy Physics

High Energy Physics - Theory

37 pages, 4 figures

Scientific paper

10.1007/JHEP10(2010)076

We study symmetries of the quantized open twistor string. In addition to global PSL(4|4) symmetry, we find non-local conserved currents. The associated non-local charges lead to Ward identities which show that these charges annihilate the string gluon tree amplitudes, and have the same form as symmetries of amplitudes in N=4 super conformal Yang Mills theory. We describe how states of the open twistor string form a realization of the PSL(4|4) Yangian superalgebra.

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