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题名: Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension
作者: Han, XF ;  Wang, L ;  Wu, L ;  Yang, JM ;  Zhang, MC
刊名: PHYSICS LETTERS B
出版日期: 2016
卷号: 756, 页码:309-316
学科分类: Astronomy & Astrophysics; Physics
DOI: http://dx.doi.org/10.1016/j.physletb.2016.03.035
通讯作者: Wang, L (reprint author), Yantai Univ, Dept Phys, Yantai 264005, Peoples R China.
文章类型: Article
英文摘要: In this paper, we interpret the 750 GeV diphoton excess in the Zee-Babu extension of the two-Higgs-doublet model by introducing a top partner (T)/bottom partner (B). In the alignment limit, the 750 GeV resonance is identified as the heavy CP-even Higgs boson (H), which can be sizably produced via the QCD process pp -> T (T) over bar or pp -> B (B) over bar followed by the decay T -> Ht or B -> Hb. The diphoton decay rate of His greatly enhanced by the charged singlet scalars predicted in the Zee-Babu extension and the total width of H can be as large as 7 GeV. Under the current LHC constraints, we scan the parameter space and find that such an extension can account for the observed diphoton excess. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: TREE-LEVEL UNITARITY ;  HIGGS-BOSON MASSES ;  RESONANCE ;  BOUNDS ;  DOUBLETS ;  BREAKING ;  LHC ;  TOP
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11575152, 11305049, 11275057, 11405047, 11275245, 10821504, 11135003] ;  Specialized Research Fund for the Doctoral Program of Higher Education [20134104120002] ;  Spanish Government ;  ERDF funds from the EU Commission [FPA2014-53631-C2-1-P, SEV-2014-0398, FPA2011-23778] ;  Australian Research Council ;  CAS Center for Excellence in Particle Physics (CCEPP)
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21659
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Han, XF,Wang, L,Wu, L,et al. Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension[J]. PHYSICS LETTERS B,2016,756:309-316.
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