A calculation of the ZH → γH 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 ; Ramirez-Zavaleta, F.^1 ; Tututi, E.S.^1

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

58060, Mexico^1

Departamento de Fisica, CINVESTAV, Apartado Postal 14-740, México, D. F.

07000, Mexico^2

关键词: Branching ratio;    Gauge bosons;    Gauge symmetries;    Heavy neutral gauge bosons;    Higgs model;    Little higgs;    Loop level;    The standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/761/1/012089/pdf
DOI  :  10.1088/1742-6596/761/1/012089

来源: IOP

【 摘 要 】

New heavy neutral gauge bosons are predicted in many extensions of the Standard Model, those new bosons are associated with additional gauge symmetries. We present a preliminary calculation of the branching ratio decay for heavy neutral gauge bosons (Zh) into γH in the most popular version of the Little Higgs models. The calculation involves the main contributions at one-loop level induced by fermions, scalars and gauge bosons. Preliminary results show a very suppressed branching ratio of the order of 10-6.