No-scale D=5 supergravity from Scherk-Schwarz reduction of D=6 theories

TL;DR

This paper derives five-dimensional no-scale supergravity theories from six-dimensional supergravity via generalized Scherk-Schwarz reduction, revealing new gauge groups and partial supersymmetry breaking.

Contribution

It introduces a novel reduction method that produces gauged supergravities with previously unclassified gauge groups and explores supersymmetry breaking in maximal theories.

Findings

Obtained five-dimensional no-scale supergravities from six-dimensional theories.

Identified new gauge groups beyond previous classifications.

Discovered a four-parameter solution enabling partial supersymmetry breaking.

Abstract

We perform a generalized dimensional reduction of six dimensional supergravity theories to five dimensions. We consider the minimal $(2,0)$ and the maximal $(4,4)$ theories. In each case the reduction allows us to obtain gauged supergravities of no-scale type in dimension five with gauge groups that escape previous classifications. In the minimal case, the geometric data of the reduced theory correspond to particular cases of the D=5 real special geometry. In the maximal case we find a four parameter solution which allows partial breaking of supersymmetry.