scholarly journals Enhancement ofH→γγfrom doubly charged scalars in the Higgs triplet model

2012 ◽  
Vol 86 (3) ◽  
Author(s):  
A. G. Akeroyd ◽  
S. Moretti
Keyword(s):  
Triplet Model ◽  
Doubly Charged ◽  
Higgs Triplet Model

Pair production of doubly charged Higgs boson at photon linear collider in the Higgs triplet model

2014 ◽  
Vol 29 (10) ◽  
pp. 1450041 ◽  
Author(s):  
Jun Cao ◽  
Jie-Fen Shen
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Cross Sections ◽  
Linear Collider ◽  
Higgs Bosons ◽  
Charged Higgs ◽  
Triplet Model ◽  
Charged Higgs Bosons ◽  
Doubly Charged ◽  
Higgs Triplet Model

The characteristic feature of the Higgs Triplet Model (HTM) is the existence of the doubly charged Higgs bosons H±±. In this paper, we study the pair production of doubly charged Higgs bosons in γγ collisions at the International Linear Collider (ILC). We present the production cross-sections and the distributions of the various observables, i.e. the distributions of the transverse momenta, the rapidity distributions for doubly charged Higgs bosons and the production angle distributions of the charged Higgs boson pair. Our numerical results show that, the values of the unpolarized cross-sections can reach a few hundreds of fb. We also study the possible final state for the decay mode H±±→W±W± and relevant Standard Model (SM) background. Due to high produced rate and small SM background, the possible signals of H±± might be detected via this process in the future ILC experiments.

Production of singly and doubly charged Higgs bosons from Higgs triplet model at future linear colliders

2015 ◽  
Vol 30 (16) ◽  
pp. 1550096 ◽  
Author(s):  
Jie-Fen Shen ◽  
Yan-Ping Bi ◽  
Yi Yu ◽  
Yan-Ju Zhang
Keyword(s):  
Production Cross ◽  
Vacuum Expectation ◽  
High Energy ◽  
New Physics ◽  
Higgs Bosons ◽  
Charged Higgs ◽  
Triplet Model ◽  
Charged Higgs Bosons ◽  
Doubly Charged ◽  
Higgs Triplet Model

The singly and doubly charged Higgs bosons (H± and H±±) are the typical particles predicted in the Higgs Triplet Model and the observation of these particles can be regarded as the direct evidence of new physics. In this paper, we focus on the study of the singly and doubly charged Higgs bosons associated production process: e+e- → H+H--W+. We present the production cross sections and the distributions of the transverse momenta and the rapidity distributions for outgoing particles. The numerical results show that the production rates can reach the level of several fb with reasonable parameter values. So, one can expect that enough signals could be produced in the future high-energy e+e- collider experiments. The relevant SM backgrounds are also discussed in the case that the vacuum expectation value of the triplet is around 1 GeV.

Triple Higgs boson production at ILC in the Higgs triplet model

2014 ◽  
Vol 29 (23) ◽  
pp. 1450092 ◽  
Author(s):  
Jun Cao ◽  
Jie-Fen Shen
Keyword(s):  
Higgs Boson ◽  
Cross Sections ◽  
Linear Collider ◽  
Production Cross ◽  
International Linear Collider ◽  
Triplet Model ◽  
Large Production ◽  
Doubly Charged ◽  
Parameter Values ◽  
Higgs Triplet Model

Besides the Standard Model (SM)-like Higgs boson h, the Higgs Triplet Model (HTM) predicts the existence of charged and doubly charged Higgs bosons (H±and H±±). In this paper, we focus on the study of the triple Higgs production at the International Linear Collider (ILC): e-e+→hH+H-and e-e+→hH++H–. We present the production cross-sections and discuss the relevant SM backgrounds. Our numerical results show that, with reasonable parameter values, the values of the cross-sections for two processes can reach the level several fb and tens of fb, respectively. Due to large production cross-section and small SM background, the possible signals of H±and H±±might be detected via these processes in the future ILC experiments.

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