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题名: Searching for a Z
作者: Liu, JY ;  Tang, Y ;  Wu, YL
刊名: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
出版日期: 2012
卷号: 39, 期号:5, 页码:55003
学科分类: Physics
通讯作者: Liu, JY (reprint author), Chinese Acad Sci, Inst Theoret Phys, SKLTP, KITPC, Beijing 100190, Peoples R China.
部门归属: [Liu, Jin-Yan; Tang, Yong; Wu, Yue-Liang] Chinese Acad Sci, Inst Theoret Phys, SKLTP, KITPC, Beijing 100190, Peoples R China; [Tang, Yong] Natl Ctr Theoret Sci, Div Phys, Hsinchu, Taiwan
英文摘要: We study a simple ultraviolet complete and anomaly-free Z' model based on a U(1)' gauge family symmetry without introducing extra fermions beyond the standard model. The U(1) ' group is diagonal in the three-family space in which the U(1)' charges of the first and second families are the same but different from those of the third family. After spontaneous symmetry breaking and rotating to the mass eigenstates of quarks and leptons, there exist, in general, both flavor-conserving and flavor-changing couplings. In the flavor-conserving case, we use the latest dijet and dilepton search at the LHC to constrain the mass and gauge couplings of Z'. Also we show that in the flavor-changing and left-right asymmetry case, the t-channel Z' process can only contribute to part of the forward-backward asymmetry in the top quark pair production observed at the Tevatron by taking into account the constraint from the same sign top production at the LHC.
资助者: National Science Foundation of China (NSFC) [10821504, 10975170]; Chinese Academy of Science
收录类别: SCI
原文出处: 查看原文
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15111
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Liu, JY,Tang, Y,Wu, YL. Searching for a Z[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2012,39(5):55003.
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