Decays of Standard Model–Like Higgs Boson → γγ, γ in a Minimal Left-Right Symmetric Model Left-right symmetric model and its TeV-scale phenomenology
T T Hong (An Giang University, Long Xuyen City, Vietnam, Vietnam National University, Ho Chi Minh City, Vietnam); V K Le (An Giang University, Long Xuyen City, Vietnam, Binh Thuy Junior High School, Bui Huu Nghia Street, Binh Thuy Ward, Binh Thuy District, Can Tho City, Vietnam); L T T Phuong (An Giang University, Long Xuyen City, Vietnam); N C Hoi (An Giang University, Long Xuyen City, Vietnam); N T K Ngan (Department of Physics, Can Tho University, 3/2 Street, Can Tho, Vietnam); et al - Show all 6 authors
Abstract Two decay channels h → γγ, Zγ of the Standard Model–like Higgs in a left-right symmetry model are investigated using recent experimental data. We show that there exist one-loop contributions that affect the h → Zγ amplitude, but not the h → γγ amplitude. From numerical investigations, we show that the signal strength μ$_{Zγ}$ of the decay h → Zγ is still constrained strictly by that of h → γγ, namely |Δμ$_{γγ}$| < 38% results in maximum |Δμ$_{Zγ}$| < 46%. On the other hand, the future experimental sensitivity |Δμ$_{γγ}$| = 4% still allows |Δμ$_{Zγ}$| to reach values larger than the expected sensitivity of |Δμ$_{Zγ}$| = 23%.
