ingle production of the vector-like B quark at CLIC via bZ channel
摘要:
许多超出标准模型的新物理都预测了新的类矢量夸克.它们会在高能对撞机上产生独特的信号.基于模型无关的框架,研究了单态的类矢量B夸克在质心能量为3 TeV的紧凑型线性对撞机上的单个产生过程.重点研究e+e-→B→Zb过程以及Z玻色子两种衰变道(Z→l+l-和Z→v)的末态信号.通过对信号和标准模型背景的分析,分别给出了在年积分亮度为5 ab-1下对B夸克质量和耦合参数的排除限制和发现范围.数值结果表明,未来的高能量线性对撞机可以作为探测类矢量B夸克的电弱耦合的理想场所.
Many new physics scenarios beyond the Standard Model predict new vector-like quarks that could produce unique signals at high-energy colliders.Based on a model-independent framework,we investigate the prospect of discovering the singlet vector-like bottom quark(VLQ-B)in collisions at 3 TeV Compact Linear Collider.We study the single VLQ-B production process e+e-→B→Zb,with two types of decay channels:Z→l+l-and Z→v.By carrying out a full simulation for the signals and the relevant SM backgrounds,the exclusion limit and discovery prospects are,respectively,obtained on the VLQ-B quark mass and the coupling strength with the integrated luminosity of 5 ab-1.Our numerical results show that future high-energy linear colliders could serve as ideal sites for probing electroweak coupling of VLQ-B.
作者:
崔小敏 李亚桢 王奕戈 刘要北
Cui Xiaomin;Li Yazhen;Wang Yige;Liu Yaobei(School of Mechanical and Electrical Engineering,Henan Institute of Science and Technology,Xinxiang 453000,China;School of Mathematics Science,Henan Institute of Science and Technology,Xinxiang 453000,China)
机构地区:
河南科技学院机电学院 河南科技学院数学科学学院
出处:
《betway官方app 学报:自然科学版》 CAS 北大核心 2023年第3期131-135,共5页
Journal of Henan Normal University(Natural Science Edition)
基金国家自然科学基金(12275067) 河南省自然科学基金(222300420443) 河南省高等学校重点科研项目(22A140019).
关键词:
类矢量夸克 紧凑型线性对撞机 产生截面
vector-like quark Compact Linear Collider production cross section
分类号:
O572.22 [理学—粒子物理与原子核物理]