Gauge symmetries of strings in supertwistor space

Details Gauge symmetries of strings in supertwistor space Gauge symmetries of strings in supertwistor space

2006-06-22

arxiv.org/abs/hep-th/0606222v2

Int.J.Mod.Phys.A22:1663-1683,2007

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, LaTeX; v.2 minor changes in the text, references added, misprints corrected

Scientific paper

10.1142/S0217751X07035240

Recently we have considered supertwistor reformulation of the D=4 N=1,2 superstring action that comprises Newman-Penrose dyad components and is classically equivalent to the Green-Schwarz one. It was shown that in the covariant kappa-symmetry gauge the supertwistor representation of the string action simplifies. Here we analyze its Hamiltonian formulation, classify the constraints on the phase-space variables, and find the covariant set of generators of the gauge symmetries. Quantum symmetries of the supertwistor representation of the string action are examined applying the world-sheet CFT technique. Considered are various generalizations of the model from the perspective of their possible relation to known twistor superstring models.

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