New strings with world-sheet supersymmetry

TL;DR

This paper introduces a novel string theory model featuring world-sheet supersymmetry and an additional fermionic symmetry akin to BRST, resulting in a spectrum of massless Rarita-Schwinger states with infinite half-integer spins.

Contribution

It proposes a new string theory model with unique global fermionic symmetry and a distinctive spectrum of massless higher-spin states.

Findings

Spectrum includes massless Rarita-Schwinger fields.

Model exhibits an additional fermionic symmetry similar to BRST.

Infinite tower of half-integer spin states.

Abstract

We suggest a new model of string theory with world-sheet supersymmetry. It possesses an additional global fermionic symmetry which is similar in many ways to BRST symmetry. The spectrum consists of massless states of Rarita-Schwinger fields describing infinite tower of half-integer spins.