Corners and islands in the S-matrix bootstrap of the open superstring

Abstract We bootstrap the Veneziano superstring amplitude in 10 dimensions from the bottom-up. Starting with the most general maximally supersymmetric Yang-Mills EFT, we input information about the lowest-lying massive states, which we assume contribute via tree-level exchanges to the 4-point amplit...

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Main Authors: Justin Berman, Henriette Elvang
Format: Article
Language:English
Published: SpringerOpen 2024-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2024)076
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author Justin Berman
Henriette Elvang
author_facet Justin Berman
Henriette Elvang
author_sort Justin Berman
collection DOAJ
description Abstract We bootstrap the Veneziano superstring amplitude in 10 dimensions from the bottom-up. Starting with the most general maximally supersymmetric Yang-Mills EFT, we input information about the lowest-lying massive states, which we assume contribute via tree-level exchanges to the 4-point amplitude. We show the following: (1) if there is only a single state at the lowest mass, it must be a scalar. (2) Assuming a string-inspired gap between the mass of this scalar and any other massive states, the allowed region of Wilson coefficients has a new sharp corner where the Veneziano amplitude is located. (3) Upon fixing the next massive state to be a vector, the EFT bounds have a one-parameter family of corners; these would correspond to models with linear Regge trajectories of varying slopes, one of which is the open superstring. (4) When the ratio between the massive scalar coupling and the trF 4 coefficient is fixed to its string value, the spin and mass of the second massive state is determined by the bootstrap and the Veneziano amplitude is isolated on a small island in parameter space. Finally, we compare with other recent bootstraps approaches, both the pion model and imposing Regge-inspired maximal spin constraints.
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spelling doaj-art-af93d77ac5554403ad6f1d6e65bf4e0d2024-12-08T12:16:37ZengSpringerOpenJournal of High Energy Physics1029-84792024-09-012024914610.1007/JHEP09(2024)076Corners and islands in the S-matrix bootstrap of the open superstringJustin Berman0Henriette Elvang1Leinweber Center for Theoretical Physics, Randall Laboratory of Physics, The University of MichiganLeinweber Center for Theoretical Physics, Randall Laboratory of Physics, The University of MichiganAbstract We bootstrap the Veneziano superstring amplitude in 10 dimensions from the bottom-up. Starting with the most general maximally supersymmetric Yang-Mills EFT, we input information about the lowest-lying massive states, which we assume contribute via tree-level exchanges to the 4-point amplitude. We show the following: (1) if there is only a single state at the lowest mass, it must be a scalar. (2) Assuming a string-inspired gap between the mass of this scalar and any other massive states, the allowed region of Wilson coefficients has a new sharp corner where the Veneziano amplitude is located. (3) Upon fixing the next massive state to be a vector, the EFT bounds have a one-parameter family of corners; these would correspond to models with linear Regge trajectories of varying slopes, one of which is the open superstring. (4) When the ratio between the massive scalar coupling and the trF 4 coefficient is fixed to its string value, the spin and mass of the second massive state is determined by the bootstrap and the Veneziano amplitude is isolated on a small island in parameter space. Finally, we compare with other recent bootstraps approaches, both the pion model and imposing Regge-inspired maximal spin constraints.https://doi.org/10.1007/JHEP09(2024)076Effective Field TheoriesScattering AmplitudesSupersymmetric Effective TheoriesSupersymmetric Gauge Theory
spellingShingle Justin Berman
Henriette Elvang
Corners and islands in the S-matrix bootstrap of the open superstring
Journal of High Energy Physics
Effective Field Theories
Scattering Amplitudes
Supersymmetric Effective Theories
Supersymmetric Gauge Theory
title Corners and islands in the S-matrix bootstrap of the open superstring
title_full Corners and islands in the S-matrix bootstrap of the open superstring
title_fullStr Corners and islands in the S-matrix bootstrap of the open superstring
title_full_unstemmed Corners and islands in the S-matrix bootstrap of the open superstring
title_short Corners and islands in the S-matrix bootstrap of the open superstring
title_sort corners and islands in the s matrix bootstrap of the open superstring
topic Effective Field Theories
Scattering Amplitudes
Supersymmetric Effective Theories
Supersymmetric Gauge Theory
url https://doi.org/10.1007/JHEP09(2024)076
work_keys_str_mv AT justinberman cornersandislandsinthesmatrixbootstrapoftheopensuperstring
AT henrietteelvang cornersandislandsinthesmatrixbootstrapoftheopensuperstring