First Massive State of the Superstring in Superspace

TL;DR

This paper constructs a superspace vertex operator for the first massive state of the four-dimensional open superstring, offering a new superspace representation of the massive spin-2 multiplet.

Contribution

It introduces a novel superspace vertex operator for the first massive state in 4D superstring theory, enhancing the understanding of supersymmetric string states.

Findings

Constructed the vertex operator in superspace for the first massive state.

Provided an N=1 D=4 superspace representation of the massive spin-2 multiplet.

Advances the formalism for describing massive string states in superspace.

Abstract

Using the manifestly spacetime supersymmetric description of the four-dimensional open superstring, we construct the vertex operator in superspace for the first massive state. This construction provides an N=1 D=4 superspace representation of the massive spin-2 multiplet.