2022/05/30 by Xi Wang, Wang, Xi, Shu-Min Zhao +13
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2205.14880
openalex publication_date 2022/05/30 · openalex created_date 2022/06/13 · openalex updated_date 2026/07/28
We present a detailed analysis of the Higgs boson decays h→ Z γ and h→ mV Z in the U(1)XSSM, with mV denoting the meson (ω,ρ,ϕ,J/ψ,Υ). Using the effective Lagrangian method, we calculate the effective constants CγZ (CP-even) and CγZ (CP-odd) for the vertex h γZ, which are corrected by the new particle loop diagrams. Numerically, the ratio ΓU(1)X(h→ Z γ)/ΓSM(h→ Z γ) is between 1.02-1.35. For the vector mesons ω,ρ,ϕ and J/ψ, the ratios ΓU(1)X(h→ mV Z )/ΓSM(h→ mV Z) are mainly distributed in the range of (1.01-1.45). When mV represents Υ, the larger value of the ratio ΓU(1)X(h→ ΥZ )/ΓSM(h→ ΥZ) is mostly located in the range of (1.002-1.30). This work can provide a reference for specific types of decay processes which can be searched in LHC.