Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension
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 th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316300065 |
| _version_ | 1818990651009662976 |
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| author | Xiao-Fang Han Lei Wang Lei Wu Jin Min Yang Mengchao Zhang |
| author_facet | Xiao-Fang Han Lei Wang Lei Wu Jin Min Yang Mengchao Zhang |
| author_sort | Xiao-Fang Han |
| collection | DOAJ |
| description | 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→TT¯ or pp→BB¯ followed by the decay T→Ht or B→Hb. The diphoton decay rate of H is 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. |
| first_indexed | 2024-12-20T19:57:45Z |
| format | Article |
| id | doaj.art-ab6c2eb026b04e989c03ce94b752732e |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-20T19:57:45Z |
| publishDate | 2016-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-ab6c2eb026b04e989c03ce94b752732e2022-12-21T19:28:07ZengElsevierPhysics Letters B0370-26931873-24452016-05-01756C30931610.1016/j.physletb.2016.03.035Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extensionXiao-Fang Han0Lei Wang1Lei Wu2Jin Min Yang3Mengchao Zhang4Department of Physics, Yantai University, Yantai 264005, ChinaIFIC, Universitat de València-CSIC, Apt. Correus 22085, E-46071 València, SpainARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, The University of Sydney, NSW 2006, AustraliaInstitute of Theoretical Physics, Academia Sinica, Beijing 100190, ChinaInstitute of Theoretical Physics, Academia Sinica, Beijing 100190, ChinaIn 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→TT¯ or pp→BB¯ followed by the decay T→Ht or B→Hb. The diphoton decay rate of H is 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.http://www.sciencedirect.com/science/article/pii/S0370269316300065 |
| spellingShingle | Xiao-Fang Han Lei Wang Lei Wu Jin Min Yang Mengchao Zhang Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension Physics Letters B |
| title | Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension |
| title_full | Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension |
| title_fullStr | Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension |
| title_full_unstemmed | Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension |
| title_short | Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension |
| title_sort | explaining 750 gev diphoton excess from top bottom partner cascade decay in two higgs doublet model extension |
| url | http://www.sciencedirect.com/science/article/pii/S0370269316300065 |
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