Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension

doi:http://dx.doi.org/10.1016/j.physletb.2016.03.035

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	Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension
	Han, XF ; Wang, L 2; Wu, L 3; Yang, JM; Zhang, MC
刊名	PHYSICS LETTERS B
	2016
卷号	756 页码:309-316
关键词	TREE-LEVEL UNITARITY HIGGS-BOSON MASSES RESONANCE BOUNDS DOUBLETS BREAKING LHC TOP
DOI	http://dx.doi.org/10.1016/j.physletb.2016.03.035
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.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
资助机构	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)
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/23137]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan 2.Yantai Univ, Dept Phys, Yantai 264005, Peoples R China 3.Univ Valencia, CSIC, IFIC, Apt Correus 22085, E-46071 Valencia, Spain 4.Univ Sydney, ARC Ctr Excellence Particle Phys Terascale, Sch Phys, Sydney, NSW 2006, Australia 5.Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 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.