English

All zeros of (super)String Theory

High Energy Physics - Theory 2025-06-19 v1

Abstract

In this paper, we study the zeros of string theory utilizing its curve-integral representation. Firstly, we note that for bosonic strings the tachyon amplitude in curve-representation is identical to the kinematic shifted Trϕ3\phi^3 amplitude. Scaffolding is then equivalent to taking the OPE limit of vertex operators on the string world-sheet, which yields amplitude of higher excitations. Using this picture, we derive that the nn-point level-NN scattering amplitude shares the same set of zeros as the nn-point tachyon amplitude as well as those inherited from it's prescaffold image, i.e. (2N)n(2^N)n-point. Doing the same for the super-tachyon amplitude, exposes new zeros for the open super-string, which can be viewed as the avatar of supersymmetry. Finally we also consider the gluino amplitude at four and six-points, identifying its zero and recovering super-Yang-Mills via scaffolding. Finally we consider the field theory limit of colored fermion amplitudes from the curve-integral form.

Keywords

Cite

@article{arxiv.2506.15299,
  title  = {All zeros of (super)String Theory},
  author = {Yu-Chi Chang and Hsing-Yen Chen and Yu-tin Huang},
  journal= {arXiv preprint arXiv:2506.15299},
  year   = {2025}
}

Comments

35pages, 7figures

R2 v1 2026-07-01T03:23:21.141Z