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 NEXT-TO-LEADING ORDER QCD CORRECTIONS TO LIGHT HIGGS PAIR PRODUCTION VIA VECTOR BOSON FUSION

2008 ◽  
Vol 23 (24) ◽  
pp. 1961-1973 ◽  
Author(s):  
TERRANCE FIGY
Keyword(s):  
Pair Production ◽  
Cross Sections ◽  
Vector Boson ◽  
Higgs Doublet ◽  
Type Ii ◽  
Vector Boson Fusion ◽  
Monte Carlo Program ◽  
Order Unity ◽  
Doublet Model ◽  
Two Higgs Doublet Model

We present the NLO QCD corrections for light Higgs pair production via vector boson fusion at the LHC within the CP conserving type II two-Higgs doublet model in the form of a fully flexible parton-level Monte Carlo program. Scale dependences on integrated cross sections and distributions are reduced with QCD K-factors of order unity.

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 .

scholarly journals Hybrid calculation of the MSSM Higgs boson masses using the complex THDM as EFT

2021 ◽  
Vol 81 (2) ◽  
Author(s):  
Henning Bahl ◽  
Nick Murphy ◽  
Heidi Rzehak
Keyword(s):  
Higgs Boson ◽  
Cross Sections ◽  
Production Cross ◽  
Higgs Doublet ◽  
Effective Field ◽  
Decay Rates ◽  
Higgs Decay ◽  
Fixed Order ◽  
Doublet Model ◽  
Two Higgs Doublet Model

AbstractRecently, the Higgs boson masses in the Minimal supersymmetric standard model (MSSM) and their mixing have been calculated using the complex two-Higgs-doublet model (cTHDM) as an effective field theory (EFT) of the MSSM. Here, we discuss the implementation of this calculation, which we improve in several aspects, into the hybrid framework of by combing the cTHDM-EFT calculation with the existing fixed-order calculation. This combination allows accurate predictions also in the intermediate regime where some SUSY particles are relatively light, some relatively heavy and some in between. Moreover, the implementation provides precise predictions for the Higgs decay rates and production cross-sections.

scholarly journals Light scalar dark matter extension of the type-II two-Higgs-doublet model

2018 ◽  
Vol 98 (3) ◽  
Author(s):  
Lei Wang ◽  
Rongle Shi ◽  
Xiao-Fang Han ◽  
Bin Zhu
Keyword(s):  
Dark Matter ◽  
Higgs Doublet ◽  
Type Ii ◽  
Light Scalar ◽  
Doublet Model ◽  
Two Higgs Doublet Model
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