2016/03/30 by G.G. Ross, Graham G. Ross, Kai Schmidt-Hoberg +1 · 4 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Higgsino #Minimal Supersymmetric Standard Model #Particle physics #Particle physics theoretical and experimental studies #Physics #Supersymmetry #Supersymmetry breaking #hep-ph
paper · pdf · doi:10.1016/j.physletb.2016.05.053
5 pages, 2 figures
arxiv created 2016/03/30 · openalex publication_date 2016/05/24 · arxiv updated 2016/06/22 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
It is often argued that low fine tuning in the MSSM necessarily requires a rather light Higgsino. In this note we show that this need not be the case when a more complete set of soft SUSY breaking mass terms are included. In particular an Higgsino mass term, that correlates the μ-term contribution with the soft SUSY-breaking Higgsino masses, significantly reduces the fine tuning even for Higgsinos in the TeV mass range where its relic abundance means it can make up all the dark matter.