The Φ0 → γZ decay in the Littlest Higgs Model

30th Annual Meeting of the Division of Particles and Fields (DPyC) of the Mexican Physical Society

Aranda, J.I.^1 ; Cortés-Maldonado, I.^2 ; Montejo-Montejo, S.^1 ; Ramirez-Zavaleta, F.^1 ; Tututi, E.S.^1

Facultad de Ciencias Flsico Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Avenida Francisco J. Mujica S/N, Michoacán, Morelia

58060, Mexico^1

Cátedras Consejo Nacional de Ciencia y Tecnologia, México, Mexico^2

关键词: Branching ratio;    Energy scale;    Extended model;    Final state;    Heavy scalar;    Higgs model;    Loop level;    Single parameter;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/761/1/012032/pdf
DOI  :  10.1088/1742-6596/761/1/012032

来源: IOP

【 摘 要 】

The existence of new particles with masses of the order of TeV's is a characteristic of several extended models. We study a heavy scalar particle decaying into γZ final states at the one-loop level in the Littlest Higgs Model. This process is analyzed in the context of the recent results reported by ATLAS and CMS Collaborations, concerning the observation of a resonance around 750 GeV. We analyze our results in a scenario where the energy scale f ranges from 2 TeV to 5 TeV. We found that the branching ratio for the Φ0→ γZ decay is of the order of 10-7, which mainly depends on a single parameter.