Retroviruses

Denner, Joachim

doi:10.1002/9781119350927.ch44

Diseases of Swine 2019

DOI: 10.1002/9781119350927.ch44

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Retroviruses

Joachim Denner¹

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2020

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“…A public code for the computation of loop-corrected decay widths in extended Higgs sectors, H-COUP, has also been provided in[38,39]. The Higgs decay into four fermions has been implemented in the Monte Carlo generator PROPHECY4F 3.0 for the singlet extended SM and the 2HDM including the full QCD and EW NLO corrections[40].…”

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confidence: 99%

Impact of electroweak corrections on neutral Higgs boson decays in extended Higgs sectors

Krause

Mühlleitner

2020

J. High Energ. Phys.

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Precision predictions play an important role in the search for indirect New Physics effects in the Higgs sector itself. For the electroweak (EW) corrections of the Higgs bosons in extended Higgs sectors several renormalization schemes have been worked out that provide gauge-parameter-independent relations between the input parameters and the computed observables. Our recently published program codes 2HDECAY and ewN2HDECAY allow for the computation of the EW corrections to the Higgs decay widths and branching ratios of the Two-Higgs-Doublet Model (2HDM) and the Next-to-Minimal-2HDM (N2HDM) for different renormalization schemes of the scalar mixing angles. In this paper, we present a comprehensive and complete overview over the relative size of the EW corrections to the branching ratios of the 2HDM and N2HDM neutral Higgs bosons for different applied renormalization schemes. We quantify the size of the EW corrections of Standard Model(SM)-and non-SMlike Higgs bosons and moreover also identify renormalization schemes that are well-behaved and do not induce unnaturally large corrections. We furthermore pin down decays and parameter regions that feature large EW corrections and need further treatment in order to improve the predictions. Our study sets the scene for future work in the computation of higher-order corrections to the decays of non-minimal Higgs sectors. * 1 Other recent works including EW corrections to non-SM Higgs decays are [7] where EW corrections to Higgsto-Higgs decays in a singlet extension of the SM have been computed, or [8] which provides a generic calculation of the two-body partial decays widths at full one-loop level in the DR renormalization scheme. Next-to-leading order corrections to Higgs boson decays in models with non-minimal sectors have been computed in [9,10]. For the Next-to-Minimal Supersymmetric extension of the SM (NMSSM), the full one-loop renormalization and one-loop corrected two-body Higgs decay widths in the on-shell (OS) renormalization scheme have been given in [11,12]. Recent calculations of the EW corrections to the NMSSM Higgs boson decays in the CP-conserving and/or CPviolating NMSSM can be found in [13][14][15][16][17][18][19]. They can be computed with the public code NMSSMCALCEW [17] (based on the extension of NMSSMCALC [20]). m h , m H , m A , m H ± , m 2 12 , α, tan β, v . (2.19)Alternatively, the original parametrization of the scalar potential in the interaction basis can be used so that the set of independent parameters is given by λ 1 , λ 2 , λ 3 , λ 4 , λ 5 , m 2 12 , tan β, v .(2.20)

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confidence: 99%

Impact of electroweak corrections on neutral Higgs boson decays in extended Higgs sectors

Krause

Mühlleitner

2020

J. High Energ. Phys.

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Retroviruses

Cited by 1 publication

References 76 publications

Impact of electroweak corrections on neutral Higgs boson decays in extended Higgs sectors

Impact of electroweak corrections on neutral Higgs boson decays in extended Higgs sectors

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