Top-quark rare decays with flavor violation

In the present study, we investigated the decays of the top quark: , , , and . They are extremely rare processes in the standard model (SM). As the extension of the minimal supersymmetric standard model (MSSM), the SSM features new superfields such as the right-handed neutrinos and three Higgs singl...

Full description

Saved in:
Bibliographic Details
Published in:Chinese physics C 2024-09, Vol.48 (9), p.93105
Main Authors: Liu 刘, Ming-Yue 明月, Zhao 赵, Shu-Min 树民, Gao 高, Song 松, Han 韩, Xing-Yu 星宇, Feng 冯, Tai-Fu 太傅
Format: Article
Language:English
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the present study, we investigated the decays of the top quark: , , , and . They are extremely rare processes in the standard model (SM). As the extension of the minimal supersymmetric standard model (MSSM), the SSM features new superfields such as the right-handed neutrinos and three Higgs singlets. We analyzed the effects of different sensitive parameters on the results and made reasonable theoretical predictions, thereby providing a useful reference for future experimental development. Considering the constraint set by the updated experimental data, the numerical results show that the branching ratios of the four processes, i.e., , can reach the same order of magnitude as their experimental upper limits. Among them, has the most evident effect on these processes and is the main parameter; , , , , , , and are also important parameters for the processes, and have effects on the numerical results.
ISSN:1674-1137
2058-6132
DOI:10.1088/1674-1137/ad53bb