Light-cone formulation and spin spectra of massive strings

TL;DR

This paper demonstrates that all bosonic and fermionic massive string models can be consistently formulated in light-cone coordinates, enabling the derivation of their spin spectra in four dimensions.

Contribution

It introduces a unified light-cone formulation for massive string models and derives their spin generating functions in four-dimensional spacetime.

Findings

All bosonic and fermionic massive string models admit consistent light-cone formulations.

Derived explicit spin generating functions in four dimensions.

Established a foundation for analyzing massive string spectra in light-cone gauge.

Abstract

It is shown that all bosonic and fermionic massive string models admit consistent light-cone formulations. This result is used to derive the spin generating functions of these models in four dimensions.