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题名: Associated Production of Z Boson and a Pair of New Quarks at LHC
作者: Yang Shuo
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2010
卷号: 53, 期号:6, 页码:1133-1136
关键词: LEPTONS
学科分类: Physics
通讯作者: Yang, S , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
部门归属: Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
英文摘要: The associated production of Z boson and a pair of new quarks at the Large Hadron Collider (LHC) is studied. The cross sections for both sequential fermions and vector-like fermions are presented. It is found that for sequential fermions the cross sections can reach 1 similar to 10(2) fb for heavy quark mass m(Q) from 1000 GeV to 200 GeV. For vector-like quarks, the cross sections are suppressed by mixing parameter sin theta(L). Focusing on process pp -> b'b', we investigate the possibility of detecting the 6l + 2j signal. For ab' with light mass and a large branching ratioof b' -> bZ, it is found that only several signal events (parton level) can be produced with 1000 fb(-1) integrated luminosity. Although the signal events are rare, all the final states are produced centrally and multi lepton final states are clear at hadron collider, which could be easily detected.
资助者: National Science Foundation of China[90503002, 10821504]; National Basic Research Program of China[2010CB83300]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000278904200028
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5095
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Yang Shuo. Associated Production of Z Boson and a Pair of New Quarks at LHC[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2010,53(6):1133-1136.
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