Process

Krawczyk, Maria; Żochowski, Jan; Mättig, P.

doi:10.1007/s100520050483

Cited by 14 publications

(16 citation statements)

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“…[48] for supersymmetry and Ref. [49,50] for an extended Higgs sector. Our calculation is done in Feynman gauge using dimensional regularization with the help of FeynArts and FormCalc packages [51][52][53][54].…”

Section: Correlation Of the Signal Strengths For H → γ γ And H → Zγmentioning

confidence: 99%

Associated production of Higgs at linear collider in the inert Higgs Doublet Model

2014

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We study the correlation between the Standard Model Higgs decay h → γ γ and h → Z γ in the Inert Higgs Doublet Model. It is found that these two one-loop-induced decays are positively correlated, with the latter channel having slightly smaller branching ratio than the former one. At the Linear Collider, we study the interplay of the off-shell extension of these two amplitudes that contributed significantly to the associated production of the Higgs boson with a photon in the process e + e − → γ h and with an electron in the process e − γ → e − h in the s and t channels, respectively, via both γ and Z exchange for each process.

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Section: Correlation Of the Signal Strengths For H → γ γ And H → Zγmentioning

confidence: 99%

Associated production of Higgs at linear collider in the inert Higgs Doublet Model

2014

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“…The phenomenological consequences of the present measurements are quite different in the general 2HDM (Model II). An analysis in this framework of the current constraints from LEP1 data, and from other experiments can be found in [3,4]. In particular, present LEP data are unable to rule out that either h is light but M A > ∼ M Z or vice versa.…”

Section: Introductionmentioning

confidence: 99%

“…These processes depend on both sin(β − α) and tan β for h 2 , and for A on just tan β (1/ tan β) for down (up) type fermions [12]. The radiative Z decays Z→h(A) + γ is sensitive to both sin(β − α) and values of tan β, see [3].…”

Section: Higgs Production Processes In Z Decaysmentioning

confidence: 99%

“…In addition to the higher luminosity improved charm and bottom tagging capability will push the experimental sensitivity to considerably smaller cross sections for the Higgs production processes. We will study the potential for finding a light Higgs boson in particular for the process Z→h(A) + γ, sensitive to both large and small tan β extrapolating our analysis of LEP data [3], but also discuss other important Higgs production processes at the Z. At this stage no detailed simulation studies of future measurements are performed but the sensitivities are estimated by extrapolating existing LEP measurements.…”

Section: Introductionmentioning

confidence: 99%

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The light Higgs window in the 2HDM at GigaZ

2001

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The sensitivity to a light Higgs boson in the general 2HDM (II), with a mass below 40 GeV, is estimated for an future e + e − linear collider operating with very high luminosity at the Z peak (GigaZ). We consider a possible Higgs boson production via the Bjorken process, the (hA) pair production, the Yukawa process Z → bbh(A), → ττ h(A), and the decay Z→h(A) + γ. Although the discovery potential is considerably extended compared to the current sensitivities, mainly from LEP, the existence of a h or A even with a mass of a few GeV cannot be excluded with two billion Z decays. The need to study the very light Higgs scenario at a linear e + e − collider running at several hundred GeV and the LHC is emphasised.

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“…This generator includes next-to-next-to-leading order QCD corrections and next-to-leading order electroweak corrections. The branching ratios obtained were cross-checked with the results of another generator [41] in which QCD corrections are computed only up to next-to-leading order. The comparison showed good agreement between the results of the two programs.…”

Section: Two Higgs Doublet Model Interpretationsmentioning

confidence: 99%