Worldsheet for Generalized Veneziano Amplitudes

TL;DR

This paper introduces a worldsheet action that generalizes the Veneziano amplitude for open strings, incorporating a chiral composite linear dilaton, and extends to higher points and closed-string cases with partial crossing symmetry.

Contribution

It proposes a novel worldsheet formulation for generalized dual resonance amplitudes, expanding the theoretical framework beyond traditional Veneziano models.

Findings

Derived a worldsheet action reproducing generalized amplitudes

Extended the model to higher-point functions and closed-string analogs

Observed partial crossing symmetry in the extended models

Abstract

We present a worldsheet action that reproduces a class of dual resonance amplitudes discussed in the literature, which generalize the Veneziano amplitude for open strings. Our proposal builds on the chiral composite linear dilaton introduced recently. We further compute higher-point extensions and closed-string analogs, which exhibit partial crossing symmetry.