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arXiv · hep-th/9503173

Subcritical Superstrings

W. Siegel
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Abstract

We introduce the Liouville mode into the Green-Schwarz superstring. Like massive supersymmetry without central charges, there is no kappa symmetry. However, the second-class constraints (and corresponding Wess-Zumino term) remain, and can be solved by (twisted) chiral superspace in dimensions D=4 and 6. The matter conformal anomaly is c = 4-D < 1. It thus can be canceled for physical dimensions by the usual Liouville methods, unlike the bosonic string (for which the consistency condition is c = D <= 1).

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W. Siegel. 1995-03-24. Subcritical Superstrings. https://doi.org/10.1103/physrevd.52.3563

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