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Han, XF; Wang, L1; Wu, L2; Yang, JM; Zhang, MC
Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension
Source PublicationPHYSICS LETTERS B
Language英语
KeywordTREE-LEVEL UNITARITY HIGGS-BOSON MASSES RESONANCE BOUNDS DOUBLETS BREAKING LHC TOP
AbstractIn 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.
2016
Volume756Pages:309-316
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1016/j.physletb.2016.03.035
Indexed BySCI
Funding OrganizationNational 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)
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23137
Collection理论物理所科研产出_SCI论文
Affiliation1.Yantai Univ, Dept Phys, Yantai 264005, Peoples R China
2.Univ Valencia, CSIC, IFIC, Apt Correus 22085, E-46071 Valencia, Spain
3.Univ Sydney, ARC Ctr Excellence Particle Phys Terascale, Sch Phys, Sydney, NSW 2006, Australia
4.Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
5.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
Recommended Citation
GB/T 7714
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.
APA Han, XF,Wang, L,Wu, L,Yang, JM,&Zhang, MC.(2016).Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension.PHYSICS LETTERS B,756,309-316.
MLA Han, XF,et al."Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension".PHYSICS LETTERS B 756(2016):309-316.
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