Hierarchical soft terms and flavor physics

2008/12/18 by Gian F. Giudice, Marco Nardecchia, Andrea Romanino · 76 citations
Mathematics · Physics and Astronomy · #Biology #Black Holes and Theoretical Physics #Degenerate energy levels #Flavor #Mathematics #Mixing (physics) #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Scheme (mathematics) #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2008.12.030

published in Nuclear Physics B 813(1-2), 156-173 (Elsevier BV) · 21pp

arxiv created 2008/12/18 · openalex publication_date 2009/01/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study the framework of hierarchical soft terms, in which the first two generations of squarks and sleptons are heavier than the rest of the supersymmetric spectrum. This scheme gives distinctive predictions for the pattern of flavor violations, which we compare to the case of nearly degenerate squarks. Experiments in flavor physics have started to probe the most interesting parameter region, especially in b↔ s transitions, where hierarchical soft terms can predict a phase of B_s mixing much larger than in the Standard Model.

Citations

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• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Averages of b-hadron Properties at the End of 2005

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