Natural Generalization of Bosonic String Amplitudes

1993/02/26 by Makoto Natsuume, Natsuume, Makoto · 1 citation
Physics and Astronomy · #Advanced Mathematical Theories and Applications #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Scientific Research and Discoveries

paper · pdf · doi:10.48550/arxiv.hep-th/9302131

openalex publication_date 1993/02/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The similarity between tree-level string theory scalar amplitudes, the Koba-Nielsen form (S¹) and the Virasoro-Shapiro form (S²) suggests a natural Sⁿ generalization for a scalar amplitude. It is shown that the Sⁿ amplitude shares many essential properties of the string theory amplitudes, including SO(n+1,1) conformal symmetry and linear Regge trajectories for the mass spectrum. We also discuss factorization and the critical dimension for the amplitude, which are the necessary conditions for the quantum mechanical consistency (unitarity) of the amplitude.

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• The Veneziano Amplitude in any Dimension and a Virasoro-Shapiro Partial Amplitude

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