Abstract
We propose a twistor-like formulation of N = 1, D = 3, 4, 6 and 10 null superstrings. The model possesses N = 1 target space supersymmetry and n = D − 2 local worldsheet supersymmetry, the latter replaces the κ-symmetry of the conventional approach to the strings. Adding a Wess-Zumino term to a null superstring action we observe a string tension generation mechanism [J.A. De Azcàrraga, J.M. Izquierdo and P.K. Townsend, Phys. Rev. D 45 (1992) 3321; P.K. Townsend, Phys. Lett. B 277 (1992) 285; E. Bergshoeff, L.A.J. London and P.K. Townsend, Class. Quantum Grav. 9 (1992) 2545; and F. Delduc, A. Galperin, P. Howe and E. Sokatchev, Phys. Rev. D 47 (1992) 578]: the induced worldsheet metric becomes nondegenerate and the resulting model turns out to be classically equivalent to the heterotic string.
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