English

When Anomaly Mediation is UV Sensitive

High Energy Physics - Theory 2011-07-04 v2 High Energy Physics - Phenomenology

Abstract

Despite its successes---such as solving the supersymmetric flavor problem---anomaly mediated supersymmetry breaking is untenable because of its prediction of tachyonic sleptons. An appealing solution to this problem was proposed by Pomarol and Rattazzi where a threshold controlled by a light field deflects the anomaly mediated supersymmetry breaking trajectory, thus evading tachyonic sleptons. In this paper we examine an alternate class of deflection models where the non-supersymmetric threshold is accompanied by a heavy, instead of light, singlet. The low energy form of this model is the so-called extended anomaly mediation proposed by Nelson and Weiner, but with potential for a much higher deflection threshold. The existence of this high deflection threshold implies that the space of anomaly mediated supersymmetry breaking deflecting models is larger than previously thought.

Keywords

Cite

@article{arxiv.1008.3774,
  title  = {When Anomaly Mediation is UV Sensitive},
  author = {N. Setzer and S. Spinner},
  journal= {arXiv preprint arXiv:1008.3774},
  year   = {2011}
}

Comments

14 pages, 1 figure (version to appear in JHEP)

R2 v1 2026-06-21T16:03:54.290Z