Supersymmetric R^4 actions and quantum corrections to superspace torsion constraints

TL;DR

This paper constructs a supersymmetric version of the R^4 term in eleven-dimensional supergravity, demonstrating it does not alter the fundamental superspace torsion constraints prior to gauge-field inclusion.

Contribution

It provides the first supersymmetrisation of the anomaly-related R^4 term in eleven dimensions without modifying on-shell supertranslation algebra or superspace torsion constraints.

Findings

Supersymmetrisation of R^4 term achieved

No modifications to supertranslation algebra or torsion constraints

Results hold before gauge-field term inclusion

Abstract

We present the supersymmetrisation of the anomaly-related R^4 term in eleven dimensions and show that it induces no non-trivial modifications to the on-shell supertranslation algebra and the superspace torsion constraints before inclusion of gauge-field terms.