scholarly journals Charged Higgs through Triple or Double Higgs Production in a General Two Higgs Doublet Model at an e+e- Linear Collider

2015 ◽  
Author(s):  
Ijaz Ahmed ◽  
Majid HASHEMI
Keyword(s):  
Linear Collider ◽  
Higgs Doublet ◽  
Higgs Production ◽  
Charged Higgs ◽  
Doublet Model ◽  
Two Higgs Doublet Model

Double Higgs production in the Two Higgs Doublet Model at the linear collider

2008 ◽  
Author(s):  
Abdesslam Arhrib ◽  
Rachid Benbrik ◽  
Cheng-Wei Chiang ◽  
John Ellis ◽  
Salah Nasri ◽  
...  
Keyword(s):  
Linear Collider ◽  
Higgs Doublet ◽  
Higgs Production ◽  
Doublet Model ◽  
Two Higgs Doublet Model

scholarly journals Sources of Charged Higgs Pair through Double or Triple Higgs Production at Linear Colliders

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Ijaz Ahmed
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Higgs Doublet ◽  
Higgs Production ◽  
Type Ii ◽  
Electron Positron ◽  
Charged Higgs ◽  
Linear Colliders ◽  
Doublet Model ◽  
Two Higgs Doublet Model

The production of triple Higgs (H+H-H0), (H+H-h0) and pairwise charged Higgs boson (H+H-) is studied in the context of future linear colliders within the two-Higgs-doublet model (2HDM) type II. The aim is to compare sources of charged Higgs pair through the above processes, that is, double and triple Higgs production. Cross sections are calculated at the leading order in 2HDM type II and Minimal Supersymmetric Standard Model (MSSM). Several orders of magnitude (~104) enhancement are observed in 2HDM compared to MSSM, while no sizable enhancement is seen in muon collider versus electron-positron collider. The analysis is based on a heavy charged Higgs with mass above 500 GeV. It is found that double charged Higgs production cross section (being the same in 2HDM and MSSM) is few femtobarns, while the triple Higgs production cannot exceed a fraction of femtobarn within the parameter space under study.

scholarly journals Observability of triple or double charged Higgs production in two Higgs doublet model type II at an e+e- linear collider

2015 ◽  
Vol 30 (04n05) ◽  
pp. 1550022 ◽  
Author(s):  
M. Hashemi ◽  
I. Ahmed
Keyword(s):  
Higgs Mass ◽  
Linear Collider ◽  
Higgs Doublet ◽  
Type Ii ◽  
Higgs Decay ◽  
Charged Higgs ◽  
Signal Significance ◽  
Doublet Model ◽  
Two Higgs Doublet Model ◽  
Higgs Signal

In this paper the charged Higgs signal through triple or double Higgs production in a two Higgs doublet model (2HDM) type II is studied. The main production process is e+e- →H+H-H0 followed by the charged Higgs decay to a pair of τν and the neutral Higgs decay to [Formula: see text]. The alternative process H+W-H0 is also included as a source of charged Higgs signal in the analysis. The focus is on a future e+e- linear collider operating at [Formula: see text]. The final state under consideration [Formula: see text] is suitable for electroweak background rejection using the b-tagging tools. It is shown that although the signal cross-section is small, with a reasonable background suppression, high signal significance values are achievable at an integrated luminosity 500 fb-1 depending on the charged Higgs mass, tan β and the CP-odd neutral Higgs mass. Finally results are quoted in terms of the signal significance for charged Higgs in the mass range 160 < mH± < 400 GeV .

ONE LOOP-INDUCED WZH COUPLING IN THE TWO HIGGS DOUBLET MODEL

1989 ◽  
Vol 04 (28) ◽  
pp. 2757-2766 ◽  
Author(s):  
THOMAS G. RIZZO
Keyword(s):  
Standard Model ◽  
Higgs Doublet ◽  
New Physics ◽  
Tree Level ◽  
Beyond The Standard Model ◽  
The Standard Model ◽  
Charged Higgs ◽  
Doublet Model ◽  
The One ◽  
Two Higgs Doublet Model

Although absent at the tree level in models with only doublet and singlet Higgs representations, the WZH coupling can be induced at the one-loop level. We examine the size of this induced coupling in the two Higgs doublet model due to fermion as well as Higgs/gauge boson loops. Such couplings could provide a new mechanism for charged Higgs production at colliders and are ‘backgrounds’ to new physics beyond the Standard Model. We find, however, that these couplings are very weak for all regions of the parameter space explored.

scholarly journals IMPLICATIONS OF THE RECENT TOP QUARK DISCOVERY ON TWO-HIGGS DOUBLET MODEL

1995 ◽  
Vol 10 (12) ◽  
pp. 967-972 ◽  
Author(s):  
GYE T. PARK
Keyword(s):  
Top Quark ◽  
Branching Ratio ◽  
Higgs Doublet ◽  
Recent Measurement ◽  
Model Predictions ◽  
Charged Higgs ◽  
Doublet Model ◽  
Two Higgs Doublet Model ◽  
The Impact ◽  
Top Mass

Concentrating on the impact of the very recent top quark discovery, we perform a combined analysis of two strongest constraints on the two-Higgs doublet model, one coming from the recent measurement by CLEO on the inclusive branching ratio of b→sγ decay and the other from the recent LEP data on [Formula: see text] decay. We have included the model predictions for one-loop vertex corrections to [Formula: see text] through εb. We find that the εb constraint excludes most of the less appealing window: tan β≲1 at 95% C.L. for the measured top mass mt=176±8±10 GeV from CDF. Moreover, it excludes tan β≲2 at 95% C.L. for mt≳176 GeV; combined with the b→sγ constraint, only very heavy charged Higgs (≳670 GeV) is allowed by the measured mt from CDF.

scholarly journals Double neutral Higgs production in the two-Higgs doublet model at the LHC

2009 ◽  
Vol 2009 (08) ◽  
pp. 035-035 ◽  
Author(s):  
Abdesslam Arhrib ◽  
Rachid Benbrik ◽  
Chuan-Hung Chen ◽  
Renato Guedes ◽  
and Rui Santos
Keyword(s):  
Higgs Doublet ◽  
Higgs Production ◽  
Doublet Model ◽  
Two Higgs Doublet Model
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