Are heavy scalars natural in minimal supergravity?

1999/12/31 by Andrea Romanino, Alessandro Strumia · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/s0370-2693(00)00806-6

published as Phys.Lett.B487:165-170,2000 · 4 pages. v2: dicussion clarified, final version

arxiv created 2000/06/29 · openalex publication_date 2000/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

It has been recently claimed that very large values of a universal soft mass term m₀ for sfermions and higgs bosons become natural when M_top is close to 175 GeV if tanβ≈ 10. We show that very large values of m₀ require accidental cancellations not guaranteed by experimental data or theoretical assumptions, and consequently an unnatural fine-tuning of the parameters.

Citations

• Improving the fine tuning in models of low energy gauge mediated supersymmetry breaking
• Extracting supersymmetry-breaking effects from wave-function renormalization

Cited by

• Naturalness and focus points with non-universal gaugino masses