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arXiv · 2402.07464

Two-point closed string amplitudes in the BRST formalism

Isao Kishimoto·Shigenori Seki·Tomohiko Takahashi
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Abstract

Two-point tree-level amplitudes in bosonic closed string theory are described by a correlation function within the BRST formalism, which respects manifest Lorentz and conformal invariance. In the derivation of the two-point amplitudes, we use the mostly BRST exact operator, which has been introduced for two-point open string amplitudes, and a closed string vertex with ghost number three, which has been explored in our recent work, in addition to the conventional one.

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Isao Kishimoto, Shigenori Seki, Tomohiko Takahashi. 2024-02-12. Two-point closed string amplitudes in the BRST formalism. https://arxiv.org/abs/2402.07464

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