Pair production of the singlet vector-like B quark at the CLIC

被引：2

作者：

Han, Jin-Zhong ^{[1
]}

Liu, Yao-Bei ^{[2
]}

Xu, Shi-Yu ^{[1
]}

机构：

[1] Zhoukou Normal Univ, Sch Phys & Telecommun Engn, Zhoukou 466001, Peoples R China

[2] Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 01期

关键词：

PRECISE FORMULATION; EQUIVALENCE THEOREM; JET RECONSTRUCTION; TOP PARTNER; LHC; SEARCH; SENSITIVITY; CHANNEL; DECAY; ILC;

D O I：

10.1140/epjc/s10052-023-12362-5

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Vector-like quarks (VLQs) are a common feature of many scenarios of new physics beyond the Standard Model (SM), which generally decay into a SM third-generation quark with a SM gauge boson or a Higgs boson. The presence of a new exotic decay mode of VLQs will reduce the branching ratios of these standard decay modes and thus relax the current mass exclusion limits from LHC experiments. Based on a model-independent framework, we investigate the prospect of discovering the pair production of the weak-singlet VLQ-B at the future 3-TeV Compact Linear Collider (CLIC), by focusing on the final states including one Z boson and four b-jets via two types of modes: Z -> l(+) l(-) and Z -> v (v) over bar. By performing a rapid detector simulation of the signal and background events, and considering the initial state radiation and beamstrahlung effects, the exclusion limit at the 95% confidence level and the 5 sigma discovery prospects are respectively obtained on the branching ratio of B -> bZ and the VLQ-B masses at the future 3-TeV CLIC with an integrated luminosity of 5 ab(-1).

引用

页数：9

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