Anomaly-Mediated Supersymmetry Breaking Demystified

TL;DR

This paper provides a field-theoretic reinterpretation of anomaly-mediated supersymmetry breaking, clarifying its physical mechanisms by coupling superconformal anomalies to specific superfields, enhancing conceptual understanding.

Contribution

It offers a new perspective on anomaly-mediated supersymmetry breaking by coupling anomalies to the chiral compensator or $U(1)_R$ vector superfield, improving physical intuition.

Findings

Reinterpreted anomaly mediation in a field-theoretic framework

Clarified the role of superconformal anomalies and superfields

Compared with conventional spurion-based approaches

Abstract

We reinterpret anomaly-mediated supersymmetry breaking from a field-theoretic perspective in which superconformal anomalies couple to either the chiral compensator or the $U(1)_R$ vector superfield. As supersymmetry in the hidden sector is spontaneously broken by non-vanishing vacuum expectation values of the chiral compensator F-term and/or the $U(1)_R$ vector superfield D-term, the soft breakdown of supersymmetry emerges in the visible sector. This approach is physically more understandable compared with the conventional approach where the chiral compensator is treated on the same footing as a spurion in gauge-mediated supersymmetry breaking scenario.