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Veneziano amplitude in any dimension and a Virasoro-Shapiro partial amplitude

Christian Baadsgaard Jepsen

Phys. Rev. D 112, 066011 – Published 18 September, 2025

DOI: https://doi.org/10.1103/3xb3-5yyc

Abstract

This paper demonstrates how the Veneziano partial amplitude of Bosonic string theory admits a generalization to world-(hyper)surfaces of any dimension d. In particular, for d=2, by carving up the worldsheet integral according to stipulations imposed on conformal cross ratios, the Virasoro-Shapiro full amplitude can be decomposed into a sum of three partial amplitudes. The amplitudes obtained on generalizing the Veneziano amplitude all contain tachyons. To explore candidate tachyon-free and supersymmetric versions of these amplitudes, a new bootstrap principle is introduced and applied, which demands that towers of residues alternate between all-even and all-odd spin partial waves.

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