Anomaly mediation in supergravity theories
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We consider the effects of anomalies on the supersymmetry-breaking parameters in supergravity theories. We construct a supersymmetric expression for the anomaly-induced terms in the 1PI effective action; we use this result to compute the complete one-loop formula for the anomaly-induced gaugino mass. The mass receives contributions from the super-Weyl, Kahler, and sigma-model anomalies of the supergravity theory. We point out that the anomaly-mediated gaugino mass can be affected by local counterterms that cancel the super-Weyl-Kahler anomaly. This implies that the gaugino mass cannot be predicted unless the full high-energy theory is known.
[1] S. Gates,et al. Superspace or One Thousand and One Lessons in Supersymmetry , 1983, hep-th/0108200.
[2] B R Greene,et al. String theory. , 1994, Proceedings of the National Academy of Sciences of the United States of America.
[3] J. Bagger,et al. Supersymmetry and Supergravity , 1992 .
[4] J. Polchinski. String Theory: Preface , 1998 .