We present a detailed analysis of the Higgs boson decays $$h\rightarrow Z \gamma $$ h → Z γ and $$h\rightarrow m_V Z$$ h → m V Z in the $$U(1)_X$$ U ( 1 ) X SSM, with $$m_V$$ m V denoting one of the mesons ($$\omega ,\rho ,\phi ,J/{\psi },\Upsilon $$ ω , ρ , ϕ , J / ψ , Υ ). Using the effective Lagrangian method, we calculate the effective constants $$C_{\gamma Z}$$ C γ Z (CP-even) and $${\tilde{C}}_{\gamma Z}$$ C ~ γ Z (CP-odd) for the vertex $$h \gamma Z$$ h γ Z , which are corrected by the new particle loop diagrams. Numerically, the ratio $${\Gamma }_{U(1)_X}(h\rightarrow Z \gamma )/{\Gamma }_{SM}(h\rightarrow Z \gamma )$$ Γ U ( 1 ) X ( h → Z γ ) / Γ SM ( h → Z γ ) is between 1.02 and 1.35. For the vector mesons $$\omega ,\rho ,\phi $$ ω , ρ , ϕ and $$J/{\psi }$$ J / ψ , the ratios $${\Gamma }_{U(1)_X}(h\rightarrow m_V Z )/{\Gamma }_{SM}(h\rightarrow m_V Z)$$ Γ U ( 1 ) X ( h → m V Z ) / Γ SM ( h → m V Z ) are mainly distributed in the range of (1.01–1.45). When $$m_V$$ m V represents $$\Upsilon $$ Υ , the ratio $${\Gamma }_{U(1)_X}(h\rightarrow \Upsilon Z )/{\Gamma }_{SM}(h\rightarrow \Upsilon Z)$$ Γ U ( 1 ) X ( h → Υ Z ) / Γ SM ( h → Υ Z ) is mostly located in the range of (1.002–1.30). The aim of this work is to provide a reference for probing the $$U(1)_X$$ U ( 1 ) X SSM model via the Higgs decays $$h\rightarrow Z \gamma $$ h → Z γ and $$h\rightarrow m_V Z$$ h → m V Z .

2) Xing-Xing Dong(þ¿¿) 3) Xi-Jie Zhan( ) Hai-Bin Zhang(

Assuming that the Yukawa couplings between the Higgs and exotic quarks cannot be ignored, we analyze the signals of decay channels h → γγ and h → V V * (V = Z, W ) with the Higgs mass around 125 GeV in a supersymmetric extension of the standard model where baryon and lepton numbers are local gauge symmetries. Adopting some assumptions on relevant parameter space, we can account for the experimental data on Higgs from ATLAS and CMS naturally.

It is interesting to investigate the OZI-forbidden radiative decays of orthoquarkonium, J/ψ → γπ 0 , γη and γη ′ in perturbative QCD. In this work without the approximations adopted in literature we carry out a full one-loop calculation which involves integrations of 4-point and 5-point loop functions. Our numerical results are in agreement with the present data. We also briefly discuss the decays of J/ψ → γ + ρ 0 , as well as Υ → π 0 γ, ηγ, η ′ γ.