| Searching for Flavor-Changing Neutral-Current Signals via e＋e-（γγ） →tcht0 in Topcolor-Assisted Technicolor Model |
| |
| 作者姓名： | 鲁公儒 韩金钟 |
| |
| 作者单位： | College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China |
| |
| 基金项目： | Supported in part by the National Natural Science Foundation of China （NNSFC） under Grant Nos. 10975047, 10979008, and 10775039, and by Specialized Research Fund for the Doctoral Program of Higher Education under Grant No. 20094104110001 |
| |
| 摘 要： | In the context of the top-color-assisted technicolor （TC2） model, the flavor-changing neutral-current （FCNC） interaction induced by the top-higgs （hOt） are predicted at tree level. We study the relevant processes of e＋e-（γγ）→tcht0 at the International Linear Collider （ILC）. It is found that these rare processes production rates can be enhanced significantly in the TC2 model. Especially for the process γγ→tcht0, the total cross section will reach a few fb in the reasonable parameter space. We also calculate the distributions of transverse momenta, pseudo-rapid and invariant mass of the top-higgs. In view of the main decay modes of top-higgs for mho 〈 2mr, we find that there will be several hundreds FCNC events produced at the ILC with annually integral luminosity of 500 fb-1. Due to the clean background, such FCNC signals can possibly be detected at the ILC.
|
| 关 键 词： | TC2模型 电流信号 电子邮件 中性 国际直线对撞机 风味 搜索 不变质量分布 |
| 本文献已被 维普 等数据库收录！ |
|
