2004/09/30 by Abdesslam Arhrib
Physics and Astronomy · #Boson #Dark Matter and Cosmic Phenomena #Higgs boson #Higgs field #Higgs mechanism #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/j.physletb.2005.03.001
published as Phys.Lett. B612 (2005) 263-274 · 16 pages, Latex, 6 eps figures, more numerics, conclusion slightly modified in 2HDMII. Version to be published in PLB
arxiv created 2005/03/09 · openalex publication_date 2005/03/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We analyze the decays \h0,H0,A0\→ sb within two Higgs Doublet Models with Natural Flavor Conservation (2HDM) type I and II. It is found that the Higgs bosons decay into bottom-strange can lead to a branching ratio in the range 10-5→ 10-3 for small tanβ≈ 0.1→ 0.5 and rather light charged Higgs in the 2HDM type I. When tanβ\ga 1, one can easily reach a branching ratio of the order 10-5. In 2HDM type II, without imposing b→ sγ constraint, the situation is the same as in 2HDM type I. If b→ sγ constraint on charged Higgs mass (MH±≥ 350 GeV) is imposed, we obtain Br(h0 → sb) in the range 10-5--10-6. A comparison between the rates of h0→ sb and h0→ γγ is made. It is found that in the fermiophobic scenario, h0→ γγ is still the dominant decay mode.