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题名: Probing topcolor-assisted technicolor from top charge asymmetry and triple-top production at the LHC
作者: Han, CC ;  Liu, N ;  Wu, L ;  Yang, JM
刊名: PHYSICS LETTERS B
出版日期: 2012
卷号: 714, 期号:2-5, 页码:295-300
关键词: ELECTROWEAK SYMMETRY-BREAKING ;  QUARK CONDENSATION ;  HADRON COLLIDERS ;  PAIR PRODUCTION ;  STANDARD MODEL ;  PHYSICS ;  DYNAMICS ;  CONSTRAINTS ;  TEVATRON ;  SCALARS
学科分类: Physics
通讯作者: Liu, N (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
部门归属: [Han, Chengcheng; Liu, Ning] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China; [Han, Chengcheng; Wu, Lei; Yang, Jin Min] Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: In a topcolor-assisted technicolor model (TC2) with large FCNC top quark couplings, we study its correlated contributions to the top quark forward-backward asymmetry (A(FB)) at the Tevatron, the top charge asymmetry (A(C)) and the triple-top production at the LHC. Under current constraints on the top quark from the LHC and Tevatron (such as the total and differential production rates), we scan the parameter space of such a TC2 model. We find that in the allowed parameter space the TC2 model can explain the Tevatron measured A(FB) at 2 sigma level, but meanwhile significantly enhance A(C) at the LHC. Such enhanced A(C), albeit currently allowed by the LHC measurement at 2 sigma level, will serve as a test of TC2 with the improvement of measurement precision at the LHC. Then with all the constraints (including the requirement to explain A(FB) at 2 sigma level and satisfying the current LHC measurement of A(C) at 2 sigma level), we find that the TC2 model can induce sizable triple-top production at the 14 TeV LHC (the production rate can maximally reach 16 pb). Due to the low SM backgrounds, the triple-top production can also be a good probe for TC2 model, complementary to A(C). (C) 2012 Elsevier B.V. All rights reserved.
资助者: Henan Normal University; National Natural Science Foundation of China (NNSFC) [10821504, 11135003]; Chinese Academy of Sciences [KJCX2.YW.W10]; Startup Foundation for Doctors of Henan Normal University [11112]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000307680100019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15049
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Recommended Citation:
Han, CC,Liu, N,Wu, L,et al. Probing topcolor-assisted technicolor from top charge asymmetry and triple-top production at the LHC[J]. PHYSICS LETTERS B,2012,714(2-5):295-300.
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