"Anomaly Mediation from Unbroken Supergravity"

ABSTRACT:

Anomaly mediation is a ubiquitous source of supersymmetry breaking which appears in almost every theory of supergravity.  In this talk, I show that anomaly mediation does not actually break supersymmetry.  Instead, anomaly mediation is the consequence of an underlying anti-de Sitter algebra, and the resulting (flat space) soft mass terms are necessary for conservation of the (AdS space) supercurrent.  While anomaly mediation is usually considered to be a loop-suppressed effect, I show that anomaly mediation has an impact already at tree-level, albeit not for soft mass terms but for goldstino couplings.  This has corresponding effects (at least in principle) on supersymmetric phenomenology.