Speaker: Jinrui Huang, University of California, Irvine
Abstract: We present strategies of searching for supersymmetric non-standard decays of Standard Model (SM)-like Higgs bosons (h2) at Large Hadron Collider (LHC), motivated by ''Dark Light Higgs'' (DLH) scenario. The DLH sccenario represents a limit of the nearly-Peccei-Quinn-symmetric Next-to-Minimal Supersymmetric Standard Model, where there naturally co-exist two light singlet-like particles: a scalar (h1), a pseudoscalar (a1), and a light singlino-like DM candidate (chi_1), all with masses of order 10 GeV or below. In this scenario, the SM-like Higgs bosons typically decay dominantly into a pair of neutralinos, allowing themselves to be as light as below 100 GeV. We systematically study the searches of both the SM-like and the light Higgs bosons at the LHC, using the supersymmetric non-standard decay chain: h2 -> chi_1 chi_2, chi_2 -> chi_1 (h1, a1) with the h1 or a1 further decaying into a pair of fermions (including diMuon, diTau and b bbar, etc).