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Conformal gauge mediation and light gravitino of mass m3/2<O(10) eV

2008/04/30 by M. Ibe, Y. Nakayama, Yu Nakayama +2
Mathematics · Physics and Astronomy · #Conformal map #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Gauge (firearms) #Geometry #Gravitino #Mathematics #Mediation #Particle physics #Particle physics theoretical and experimental studies #Physics #Supergravity #Supersymmetry #hep-ph

paper · pdf · doi:10.1016/j.physletb.2008.12.043

published as Phys.Lett.B671:378-382,2009 · 14 pages

arxiv created 2008/07/25 · openalex publication_date 2008/12/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We discuss a class of gauge mediated supersymmetry breaking models with conformal invariance above the messenger mass scale (conformal gauge mediation). The spectrum of the supersymmetric particles including the gravitino is uniquely determined by the messenger mass. When the conformal fixed point is strongly interacting, it predicts a light gravitino of mass m3/2<O(10) eV, which is attractive since such a light gravitino causes no problem in cosmology.

Citations