2015/08/31 by Csaba Csáki, Csaba Csaki, Eric Kuflik +2 · 56 citations
Physics and Astronomy · #Boson #Branching fraction #Dark Matter and Cosmic Phenomena #Degenerate energy levels #Hierarchy problem #Higgs boson #Nuclear physics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #hep-ph
paper · pdf · doi:10.1103/physrevd.92.073008
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 92(7) (American Physical Society) · 10 pages, 12 figures, v3: displaced jet trigger corrected
openalex publication_date 2015/10/12 · arxiv created 2015/11/25 · arxiv updated 2015/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We study a simplified model of the Standard Model (SM) Higgs boson decaying to a degenerate pair of scalars which travel a macroscopic distance before decaying to SM particles. This is the leading signal for many well-motivated solutions to the hierarchy problem that do not propose additional light colored particles. Bounds for displaced Higgs boson decays below 10 cm are found by recasting existing tracker searches from Run I. New tracker search strategies, sensitive to the characteristics of these models and similar decays, are proposed with sensitivities projected for Run II at √(s)=13 TeV. With 20 fb^\ensuremath-1 of data, we find that Higgs branching ratios down to 2\ifmmode×\else\texttimes\fi10^\ensuremath-4 can be probed for centimeter decay lengths.