22–23 Oct 2022
University of Kansas
US/Central timezone

Scalar decays in Type II seesaw model

23 Oct 2022, 12:35
20m
2001 Malott Hall (University of Kansas)

2001 Malott Hall

University of Kansas

Department of Physics & Astronomy University of Kansas Lawrence, KS

Speaker

Mr Bathiya Samarakoon (Wichita State University)

Description

In the type II seesaw model, there are seven physical Higgs states in mass basis and those can be categorized as charged Higgs bosons ($H^±$, $H^{±±}$) and the neutral Higgs bosons ($A^0$, $H^0$,$h^0$). At LHC, one of the primary ways to search for Higgs is via its decay to two photons. We studied the two-photon decay channel of SM-like component ($H^0$) of CP-even Higgs bosons and the pseudo scalar ($A^0$) in CP-odd bosons. For these loop-induced processes, we used computer-algebraic methods to generate Feynman diagrams and to obtain analytic expressions for $Γ(H^0→γγ)$ and $Γ(A^0→γγ)$. Some numerical results given by the analytic expression under the potential stability bounds condition for the $H^0→γγ$ process were compared with the SM.

Author

Mr Bathiya Samarakoon (Wichita State University)

Presentation materials