Gauge-independent M S ¯ $$ \overline{\mathrm{MS}} $$ renormalization in the 2HDM

Denner, Ansgar; Jenniches, Laura; Lang, Jean-Nicolas; Sturm, Christian

doi:10.1007/jhep09(2016)115

Cited by 75 publications

(164 citation statements)

References 95 publications

Supporting

Mentioning

160

Contrasting

Order By: Relevance

“…We completed the renormalization of the 2HDM Higgs sector in [37] by investigating Higgs-to-Higgs decays at EW next-to-leading order (NLO). Subsequent works [38][39][40] on the 2HDM renormalization applied different approaches and renormalization conditions, confirming our findings where they overlapped. 2 The renormalization of the N2HDM is more involved due to the additional mixing angles and the additional vacuum expectation value related to the singlet field in the broken phase.…”

Section: Jhep12(2017)077supporting

confidence: 87%

“…One possibility is to use a modified MS scheme, cf. [37], where the counterterm δm 2 12 is chosen such that it cancels all residual terms of the amplitude that are proportional to 38) where γ E denotes the Euler-Mascheroni constant. These terms obviously contain the remaining UV divergences given as poles in together with additional finite constants that appear universally in all loop integrals.…”

Section: Jhep12(2017)077mentioning

confidence: 99%

See 1 more Smart Citation

Gauge-independent renormalization of the N2HDM

Krause

López-Val

Mühlleitner

et al. 2017

J. High Energ. Phys.

View full text Add to dashboard Cite

Abstract:The Next-to-Minimal 2-Higgs-Doublet Model (N2HDM) is an interesting benchmark model for a Higgs sector consisting of two complex doublet and one real singlet fields. Like the Next-to-Minimal Supersymmetric extension (NMSSM) it features light Higgs bosons that could have escaped discovery due to their singlet admixture. Thereby, the model allows for various different Higgs-to-Higgs decay modes. Contrary to the NMSSM, however, the model is not subject to supersymmetric relations restraining its allowed parameter space and its phenomenology. For the correct determination of the allowed parameter space, the correct interpretation of the LHC Higgs data and the possible distinction of beyond-the-Standard Model Higgs sectors higher order corrections to the Higgs boson observables are crucial. This requires not only their computation but also the development of a suitable renormalization scheme. In this paper we have worked out the renormalization of the complete N2HDM and provide a scheme for the gauge-independent renormalization of the mixing angles. We discuss the renormalization of the Z 2 soft breaking parameter m 2 12 and the singlet vacuum expectation value v S . Both enter the Higgs self-couplings relevant for Higgs-to-Higgs decays. We apply our renormalization scheme to different sample processes such as Higgs decays into Z bosons and decays into a lighter Higgs pair. Our results show that the corrections may be sizable and have to be taken into account for reliable predictions.

show abstract

Section: Jhep12(2017)077supporting

confidence: 87%

Section: Jhep12(2017)077mentioning

confidence: 99%

Gauge-independent renormalization of the N2HDM

Krause

López-Val

Mühlleitner

et al. 2017

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…Renormalization schemes for the 2HDM Higgs sector parameters have been discussed recently in refs. [69,70]. For our purposes it will turn out that the tree-level relations are sufficient.…”

Section: Jhep01(2017)007mentioning

confidence: 99%

The muon magnetic moment in the 2HDM: complete two-loop result

Cherchiglia

Kneschke

Stöckinger

et al. 2017

J. High Energ. Phys.

View full text Add to dashboard Cite

Abstract:We study the 2HDM contribution to the muon anomalous magnetic moment a µ and present the complete two-loop result, particularly for the bosonic contribution. We focus on the Aligned 2HDM, which has general Yukawa couplings and contains the type I, II, X, Y models as special cases. The result is expressed with physical parameters: three Higgs boson masses, Yukawa couplings, two mixing angles, and one quartic potential parameter. We show that the result can be split into several parts, each of which has a simple parameter dependence, and we document their general behavior. Taking into account constraints on parameters, we find that the full 2HDM contribution to a µ can accommodate the current experimental value, and the complete two-loop bosonic contribution can amount to (2 · · · 4) × 10 −10 , more than the future experimental uncertainty.

show abstract

“…The terms in (5) can be written in the mass eigenstate basis by applying the rotations from (18), (19) and (20) before employing the minimum conditions. From the terms linear in the C P-even components η 1 and η 2 we obtain the tadpoles…”

Section: The Two-higgs-doublet Modelmentioning

confidence: 99%

“…Details of the one-loop renormalization of the THDM have been discussed in various papers [14][15][16][17][18][19][20], with the emphasis of the more recent ones on the Higgs sector aiming at loop-improved predictions for Higgs-boson observables. The current status of precision observables is given by complete one-loop calculations which can be augmented in the subset of the SM loop contributions by incorporating the known higher-order terms of the SM; the non-standard contribution is of oneloop order and systematic two-loop calculations have not been done (Ref.…”

Section: Introductionmentioning

confidence: 99%

Two-loop corrections to the $$\rho $$ ρ parameter in Two-Higgs-Doublet models

Hessenberger

Hollik

2017

Eur. Phys. J. C

View full text Add to dashboard Cite

Models with two scalar doublets are among the simplest extensions of the Standard Model which fulfill the relation ρ = 1 at lowest order for the ρ parameter as favored by experimental data for electroweak observables allowing only small deviations from unity. Such small deviations Δρ originate exclusively from quantum effects with special sensitivity to mass splittings between different isospin components of fermions and scalars. In this paper the dominant twoloop electroweak corrections to Δρ are calculated in the C Pconserving THDM, resulting from the top-Yukawa coupling and the self-couplings of the Higgs bosons in the gauge-less limit. The on-shell renormalization scheme is applied. With the assumption that one of the C P-even neutral scalars represents the scalar boson observed by the LHC experiments, with standard properties, the two-loop non-standard contributions in Δρ can be separated from the standard ones. These contributions are of particular interest since they increase with mass splittings between non-standard Higgs bosons and can be additionally enhanced by tan β and λ 5 , an additional free coefficient of the Higgs potential, and can thus modify the one-loop result substantially. Numerical results are given for the dependence on the various non-standard parameters, and the influence on the calculation of electroweak precision observables is discussed.

show abstract

Gauge-independent M S ¯ $$ \overline{\mathrm{MS}} $$ renormalization in the 2HDM

Cited by 75 publications

References 95 publications

Gauge-independent renormalization of the N2HDM

Gauge-independent renormalization of the N2HDM

The muon magnetic moment in the 2HDM: complete two-loop result

Two-loop corrections to the $$\rho $$ ρ parameter in Two-Higgs-Doublet models

Contact Info

Product

Resources

About