Heterotic massive Einstein-Yang-Mills-type symmetry and Ward identity

TL;DR

This paper uncovers spontaneously broken symmetries involving Einstein and E8xE8 or SO(32) Yang-Mills indices in massive modes of 10D Heterotic string theory, along with their on-shell Ward identities.

Contribution

It reveals new massive mode symmetries in Heterotic string theory and constructs their associated Ward identities, extending understanding of string symmetries.

Findings

Existence of spontaneously broken symmetries in massive modes.

Construction of on-shell Ward identities for these symmetries.

Identification of Einstein and Yang-Mills index transformations in 10D Heterotic string.

Abstract

We show that there exist spontaneously broken symmetries for massive modes with transformation parameters containing both Einstein and E8xE8 (or SO(32)) Yang-Mills indices in the 10D Heterotic string. The corresponding on-shell Ward identities are also constructed.