Programme

O.2 -- Oral, VCTP-47

Date: Monday, 1 August 2022

Time: 11:35 - 12:00

Novel effects of the W-boson mass shift in the 3-3-1 model

Duong Van Loi and Phung Van Dong

Phenikaa Institute for Advanced Study and Faculty of Fundamental Sciences, Phenikaa University, Yen Nghia, Ha Dong, Hanoi 12116, Vietnam

The recent precision measurement of the W boson mass reveals an exciting hint for the new physics as of the 3-3-1 model. In this work, we indicate that the 3-3-1 model itself contains distinct sources that cause the W-mass deviation, as measured, such as the tree-level Z-Z' mixing, the tree-level W-Y and Z-Z'-X mixings, as well as the non-degenerate gauge vector (X, Y) and new Higgs doublets. We point out that the gauge vector doublet negligibly contributes to this mass shift, whereas the rest of the effects with tree-level mixings governed by Z-Z' and new Higgs doublets are significant.

Presenter: Duong Van Loi