2002/10/31 by Ana M. Curiel, M. J. Herrero, Maria J. Herrero +1 · 50 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Flavour #Gluino #Higgs boson #Minimal Supersymmetric Standard Model #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quark #Supersymmetry #hep-ph
paper · pdf · doi:10.1103/physrevd.67.075008
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 67(7) (American Physical Society) · 32 Pages and 12 PostScript Level 2 Figures. Some references added
arxiv created 2002/11/15 · openalex publication_date 2003/04/14 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the flavor changing neutral Higgs boson decays that can be induced from genuine supersymmetric particles at the one-loop level and within the context of the minimal supersymmetric standard model. We consider all the possible flavor changing decay channels of the three neutral Higgs bosons into second and third generation quarks, and focus on the supersymmetric-QCD corrections from squark-gluino loops which are expected to provide the dominant contributions. We assume here the more general hypothesis for flavor mixing, where there is misalignment between the quark and squark sectors, leading to a flavor nondiagonal squark mass matrix. The form factors involved and the corresponding Higgs partial decay widths and branching ratios are computed both analytically and numerically, and their behavior with the parameters of the minimal supersymmetric standard model and with the squark mass mixing is analyzed in full detail. The large rates found are explained in terms of the nondecoupling behavior of these squark-gluino loop corrections in the scenario with very large supersymmetric mass parameters. Our results show that if these decays are seen in future colliders, they could provide clear indirect signals of supersymmetry.