Search for heavy neutral CP-even Higgs within lepton-specific 2HDM at a future linear collider
In this paper, the production process e−e+→AH is analyzed in the context of the lepton-specific (or type Image 1) 2HDM and the question of observability of a neutral CP-even Higgs boson H at a linear collider operating at s=1 TeV is addressed. The CP-odd Higgs is assumed to experience a gauge-Higgs...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-09-01
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| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269317305440 |
| _version_ | 1819099003465236480 |
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| author | Majid Hashemi Gholamhossein Haghighat |
| author_facet | Majid Hashemi Gholamhossein Haghighat |
| author_sort | Majid Hashemi |
| collection | DOAJ |
| description | In this paper, the production process e−e+→AH is analyzed in the context of the lepton-specific (or type Image 1) 2HDM and the question of observability of a neutral CP-even Higgs boson H at a linear collider operating at s=1 TeV is addressed. The CP-odd Higgs is assumed to experience a gauge-Higgs decay as A→ZH with hadronic decay of Z boson as the signature of signal events. The production chain is thus e+e−→AH→ZHH→jjℓℓℓℓ where ℓ is a τ or μ. Four benchmark points with different mass hypotheses are assumed for the analysis. The Higgs mass mH is assumed to vary within the range 150–300 GeV in increments of 50 GeV. The anti-kt algorithm is used to perform the jet reconstruction. Results indicate that the neutral CP-even Higgs H is observable through this production mechanism using the di-muon invariant mass distribution with possibility of mass measurement. The corresponding signal significances exceed 5σ at integrated luminosity of 3000 fb−1. |
| first_indexed | 2024-12-22T00:39:58Z |
| format | Article |
| id | doaj.art-bc8511917f3446daa422404476efb97d |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-22T00:39:58Z |
| publishDate | 2017-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-bc8511917f3446daa422404476efb97d2022-12-21T18:44:42ZengElsevierPhysics Letters B0370-26931873-24452017-09-01772C42643410.1016/j.physletb.2017.06.068Search for heavy neutral CP-even Higgs within lepton-specific 2HDM at a future linear colliderMajid HashemiGholamhossein HaghighatIn this paper, the production process e−e+→AH is analyzed in the context of the lepton-specific (or type Image 1) 2HDM and the question of observability of a neutral CP-even Higgs boson H at a linear collider operating at s=1 TeV is addressed. The CP-odd Higgs is assumed to experience a gauge-Higgs decay as A→ZH with hadronic decay of Z boson as the signature of signal events. The production chain is thus e+e−→AH→ZHH→jjℓℓℓℓ where ℓ is a τ or μ. Four benchmark points with different mass hypotheses are assumed for the analysis. The Higgs mass mH is assumed to vary within the range 150–300 GeV in increments of 50 GeV. The anti-kt algorithm is used to perform the jet reconstruction. Results indicate that the neutral CP-even Higgs H is observable through this production mechanism using the di-muon invariant mass distribution with possibility of mass measurement. The corresponding signal significances exceed 5σ at integrated luminosity of 3000 fb−1.http://www.sciencedirect.com/science/article/pii/S03702693173054402HDMHiggs BosonLinear Collider |
| spellingShingle | Majid Hashemi Gholamhossein Haghighat Search for heavy neutral CP-even Higgs within lepton-specific 2HDM at a future linear collider Physics Letters B 2HDM Higgs Boson Linear Collider |
| title | Search for heavy neutral CP-even Higgs within lepton-specific 2HDM at a future linear collider |
| title_full | Search for heavy neutral CP-even Higgs within lepton-specific 2HDM at a future linear collider |
| title_fullStr | Search for heavy neutral CP-even Higgs within lepton-specific 2HDM at a future linear collider |
| title_full_unstemmed | Search for heavy neutral CP-even Higgs within lepton-specific 2HDM at a future linear collider |
| title_short | Search for heavy neutral CP-even Higgs within lepton-specific 2HDM at a future linear collider |
| title_sort | search for heavy neutral cp even higgs within lepton specific 2hdm at a future linear collider |
| topic | 2HDM Higgs Boson Linear Collider |
| url | http://www.sciencedirect.com/science/article/pii/S0370269317305440 |
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