2008/07/31 by T. Kikuchi, Tatsuru Kikuchi, Takayuki Kubo
Physics and Astronomy · #Cosmology and Gravitation Theories #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1016/j.physletb.2008.09.040
published as Phys.Lett.B669:81-87,2008 · 20 pages, 7 figures; version to appear in Phys. Lett. B
arxiv created 2008/09/23 · openalex publication_date 2008/09/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Anomaly mediated supersymmetry breaking implemented in the minimal supersymmetric standard model (MSSM) is known to suffer from the tachyonic slepton problem leading to breakdown of electric charge conservation. We show however that when MSSM is extended to explain small neutrino masses by gauging the B − L symmetry, the slepton masses can be positive due to the Z ′ mediation contributions. We obtain various soft supersymmetry breaking mass spectra, which are different from those obtained in the conventional anomaly mediation scenario. Then there would be a distinct signature of this scenario at the LHC.