Conformal Anomaly of String Theory in the Harmonic Gauge

Abstract

Considering the conformal anomaly in an effective action, the critical dimension of string theory can be decided in the harmonic gauge, in which it had been reported before to be indefinite. In this gauge, there is no anomaly for the ghost number symmetry. This can be naturally understood in terms of Faddeev-Popov conjugation in the theory.

arXiv comment13 pages + 4 uuencoded eps figures, LaTeX

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