On the BRST Operator Structure of the N=2 String

Details On the BRST Operator Structure of the N=2 String On the BRST Operator Structure of the N=2 String

1993-02-12

arxiv.org/abs/hep-th/9302049v1

Nucl.Phys. B400 (1993) 145-160

Physics

High Energy Physics

High Energy Physics - Theory

22 pages, Latex, NSF-ITP-93-17, ITP-SB-93-09, RIP-148-93

Scientific paper

10.1016/0550-3213(93)90401-A

The BRST operator cohomology of $N=2$ $2d$ supergravity coupled to matter is presented. Descent equations for primary superfields of the matter sector are derived. We find one copy of the cohomology at ghost number one, two independent copies at ghost number two, and conjecture that there is a copy at ghost number three. The $N=2$ string has a twisted $N=4$ superconformal symmetry generated by the $N=2$ superstress tensor, the BRST supercurrent, the antighost superfield, and the ghost number supercurrent.

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