On Anomaly Mediated SUSY Breaking

Abstract

A discrepancy between the Anomaly Mediated Supersymmetry Breaking (AMSB) gaugino mass calculated from the work of Kaplunovsky and Louis (hep-th/9402005) (KL) and other calculations in the literature is explained, and it is argued that the KL expression is the correct one relevant to the Wilsonian action. Furthermore it is argued that the AMSB contribution to the squark and slepton masses should be replaced by the contribution pointed out by Dine and Seiberg (DS) which has nothing to do with Weyl anomalies. This is not in general equivalent to the AMSB expression, and it is shown that there are models in which the usual AMSB expression would vanish but the DS one is non-zero. In fact the latter has aspects of both AMSB and gauge mediated SUSY breaking. In particular like the latter, it gives positive squared masses for sleptons.

Reference added, minor corrections and clarifications, version to be published in PRD 25 pages

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• Neutralino, axion and axino cold dark matter in minimal, hypercharged and gaugino AMSB
• Gaugino Anomaly Mediated SUSY Breaking: phenomenology and prospects for the LHC
• Anomaly mediated SUSY breaking model retrofitted for naturalness
• General F-Term Gauge Mediation
• Anomaly Mediated Gaugino Mass and Path-Integral Measure
• Anomaly Mediation from Unbroken Supergravity
• The Higgs as a Probe of Supersymmetric Extra Sectors
• Swiss Cheese D3-D7 Soft SUSY Breaking
• Anomaly Mediation in Superstring Theory
• SUSY's Ladder: Reframing Sequestering at Large Volume
• Testing the gaugino AMSB model at the Tevatron via slepton pair production
• Gauge Threshold Corrections and Field Redefinitions
• Anomaly Mediation from Randall-Sundrum to Dine-Seiberg
• AMSB and the Logic of Spontaneous SUSY Breaking
• Electronic structure and exotic exchange splitting in spin-density-wave states of BaFe${}_2$As${}_2$
• $E_6$ Models in Light of Precision $M_W$ Measurements
• Mediation of Supersymmetry Breaking in a Class of String Theory Models
• Splitting the Wino Multiplet by Higher-Dimensional Operators in Anomaly Mediation