scholarly journals Neutral Higgs-pair production at linear colliders within the general two-Higgs-doublet model: Quantum effects and triple Higgs boson self-interactions

2010 ◽  
Vol 81 (3) ◽  
Author(s):  
David López-Val ◽  
Joan Solà
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Quantum Effects ◽  
Higgs Doublet ◽  
Linear Colliders ◽  
Doublet Model ◽  
Two Higgs Doublet Model

scholarly journals Higgs boson pair production at a photon–photon collision in the two Higgs doublet model

2009 ◽  
Vol 672 (4-5) ◽  
pp. 354-360 ◽  
Author(s):  
Eri Asakawa ◽  
Daisuke Harada ◽  
Shinya Kanemura ◽  
Yasuhiro Okada ◽  
Koji Tsumura
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Higgs Doublet ◽  
Boson Pair ◽  
Boson Pair Production ◽  
Doublet Model ◽  
Two Higgs Doublet Model ◽  
Photon Collision

scholarly journals Analysis of Top Quark Pair Production Signal from Neutral 2HDM Higgs Bosons at LHC

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Majid Hashemi ◽  
Mahbobeh Jafarpour
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Top Quark ◽  
Top Quarks ◽  
Higgs Doublet ◽  
Higgs Bosons ◽  
Type I ◽  
Final State ◽  
Doublet Model ◽  
Two Higgs Doublet Model

In this paper, the top quark pair production events are analyzed as a source of neutral Higgs bosons of the two Higgs doublet model type I at LHC. The production mechanism is pp→H/A→tt¯ assuming a fully hadronic final state through t→Wb→jjb. In order to distinguish the signal from the main background which is the standard model tt¯, we benefit from the fact that the top quarks in signal events acquire large Lorentz boost due to the heavy neutral Higgs boson. This feature leads to three collinear jets (a fat jet) which is a discriminating tool for identification of the top quarks from the Higgs boson resonances. Events with two identified top jets are selected and the invariant mass of the top pair is calculated for both signal and background. It is shown that the low tan β region has still some parts which can be covered by this analysis and has not yet been excluded by flavor physics data.

scholarly journals Higgs pair production in the CP-violating two-Higgs-doublet model

2017 ◽  
Vol 32 (34) ◽  
pp. 1746002 ◽  
Author(s):  
Ligong Bian ◽  
Ning Chen ◽  
Yun Jiang
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Cross Sections ◽  
Higgs Doublet ◽  
High Energy ◽  
Higgs Bosons ◽  
Mixing Angles ◽  
The Future ◽  
Doublet Model ◽  
Two Higgs Doublet Model

The SM-like Higgs pair production is discussed in the framework of the general CP-violating two-Higgs-doublet model, where we find that the CP-violating mixing angles can be related to the Higgs self-couplings. Therefore, the future experimental searches for Higgs boson pairs can be constrained by the improved precision of the electric dipole moment measurements. Based on a series of constraints of the SM-like Higgs boson signal fits, the perturbative unitarity and stability bounds to the Higgs potential, and the most recent LHC searches for heavy Higgs bosons, we suggest a set of benchmark models for the future high-energy collider searches for Higgs pair production. The [Formula: see text] colliders operating at [Formula: see text] are capable of measuring the Higgs cubic self-couplings of the benchmark models directly. We also estimate the cross sections of the resonance contributions to the Higgs pair productions for the benchmark models at the future LHC and SppC/FCC-hh runs.

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