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The 2-Higgs-Doublet Model (2HDM) belongs to the simplest extensions of the Standard Model (SM) Higgs sector that are in accordance with theoretical and experimental constraints. In order to be able to properly investigate the experimental…

高能物理 - 唯象学 · 物理学 2016-10-12 Marcel Krause , Robin Lorenz , Margarete Muhlleitner , Rui Santos , Hanna Ziesche

The detailed investigation of the Higgs sector at present and future colliders necessitates from the theory side as precise predictions as possible, including higher order corrections. An important ingredient for the computation of higher…

高能物理 - 唯象学 · 物理学 2017-04-19 Marcel Krause , Margarete Muhlleitner , Rui Santos , Hanna Ziesche

We investigate how the Next-Two-Higgs Doublet Model extension (N2HDM) should look if we are to address the naturalness problem using dimensional regularization. In such a model, new Higgs states are predicted, namely: three CP-even…

高能物理 - 唯象学 · 物理学 2024-06-21 Abdesslam Arhrib , Rachid Benbrik , Larbi Rahili , Souad Semlali , Bassim Taki

We calculate the next-to-leading order (NLO) electroweak (EW) corrections to decay rates of charged Higgs bosons for various decay modes in the four types of two Higgs doublet models (THDMs) with the softly broken discrete Z_2 symmetry.…

高能物理 - 唯象学 · 物理学 2021-10-22 Masashi Aiko , Shinya Kanemura , Kodai Sakurai

We discuss the phenomenology of several Beyond the Standard Model (SM) extensions that include extended Higgs sectors. The models discussed are: the SM extended by a complex singlet field (CxSM), the 2-Higgs-Doublet Model with a…

高能物理 - 唯象学 · 物理学 2019-03-27 Duarte Azevedo , Pedro Ferreira , M. Margarete Mühlleitner , Rui Santos , Jonas Wittbrodt

We investigate the impact of electroweak (EW), scalar and QCD corrections to the full set of decay branching ratios of an additional CP-even Higgs boson ($H$) in the two Higgs doublet model with a softly broken $Z_2$ symmetry. We employ the…

高能物理 - 唯象学 · 物理学 2022-08-10 Shinya Kanemura , Mariko Kikuchi , Kei Yagyu

The feature of extended Higgs models can appear in the pattern of deviations from the Standard Model (SM) predictions in coupling constants of the SM-like Higgs boson ($h$). We can thus discriminate extended Higgs models by precisely…

高能物理 - 唯象学 · 物理学 2022-03-02 Mariko Kikuchi

We perform a comprehensive global analysis in the Minimal Supersymmetric Standard Model (MSSM) as well as in the 2-Higgs Doublet Model (2HDM) of the production and decay mechanisms of charged Higgs bosons $(H^\pm)$ at the Large Hadron…

高能物理 - 唯象学 · 物理学 2020-03-20 Abdesslam Arhrib , Rachid Benbrik , Hicham Harouiz , Stefano Moretti , Abdessamad Rouchad

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…

高能物理 - 唯象学 · 物理学 2018-01-17 Marcel Krause , David Lopez-Val , Margarete Muhlleitner , Rui Santos

We discuss a new renormalization scheme for mixing angles in extended Higgs sectors for the coming era of the Higgs precise measurements at future lepton colliders. We focus on the two Higgs doublet models (2HDMs) with a softly-broken $Z_2$…

高能物理 - 唯象学 · 物理学 2024-12-02 Shinya Kanemura , Mariko Kikuchi , Kei Yagyu

The historic LHC discovery of the 125 GeV particle with properties that closely resemble the Standard Model (SM) Higgs boson verifies our understanding of electroweak symmetry breaking, but solidifies the need for a resolution to the…

高能物理 - 唯象学 · 物理学 2013-07-23 Vernon Barger , Lisa L. Everett , Heather E. Logan , Gabe Shaughnessy

We comprehensively evaluate renormalized Higgs boson couplings at one-loop level in non-minimal Higgs models such as the Higgs Singlet Model (HSM) and the four types of Two Higgs Doublet Models (THDMs) with a softly-broken $Z_2$ symmetry.…

高能物理 - 唯象学 · 物理学 2017-08-23 Shinya Kanemura , Mariko Kikuchi , Kodai Sakurai , Kei Yagyu

Searches are presented for heavy scalar (H) and pseudoscalar (A) Higgs bosons posited in the two doublet model (2HDM) extensions of the standard model (SM). These searches are based on a data sample of pp collisions collected with the CMS…

高能物理 - 实验 · 物理学 2014-12-31 CMS Collaboration

After the discovery of the Higgs boson in 2012 at the CERN Large Hadron Collider (LHC), the study of its properties still leaves room for an extended Higgs sector with more than one Higgs boson. 2-Higgs Doublet Models (2HDMs) are…

高能物理 - 唯象学 · 物理学 2023-09-29 J. Baglio , F. Campanario , S. Glaus , M. Mühlleitner , J. Ronca , M. Spira

The Standard Model (SM)-like couplings of the observed Higgs boson impose strong constraints on the structure of any extended Higgs sector. We consider the theoretical properties and the phenomenological implications of a generic two Higgs…

高能物理 - 唯象学 · 物理学 2018-12-26 Bohdan Grzadkowski , Howard E. Haber , Odd Magne Ogreid , Per Osland

A pattern of deviations in coupling constants of Standard Model (SM)-like Higgs boson from their SM predictions indicates characteristics of an extended Higgs sector. In particular, Yukawa coupling constants can deviate in different…

高能物理 - 唯象学 · 物理学 2014-06-10 Mariko Kikuchi

A pattern of deviations in the Standard Model (SM) like Higgs boson ($h$) couplings from their SM predictions depends on the structure of the Higgs sector and the Yukawa interaction. In particular, in Two Higgs Doublet Models (THDMs) with a…

高能物理 - 唯象学 · 物理学 2014-12-02 Mariko Kikuchi

Measurements of a Higgs boson at the Large Hadron Collider (LHC) have become increasingly consistent with the predictions of the Standard Model (SM). This fact puts severe constraints on many potential low-energy extensions of the Higgs…

高能物理 - 唯象学 · 物理学 2019-09-04 Emily Hanson , William Klemm , Roger Naranjo , Yvonne Peters , Apostolos Pilaftsis

Inspired by the recent observation of the Higgs boson radiative decay into $Z^0$ by {\tt ATLAS} and {\tt CMS} Collaborations, we investigate the next-to-leading-order (NLO) electroweak correction to this rare decay process in Standard Model…

高能物理 - 唯象学 · 物理学 2024-09-23 Wen-Long Sang , Feng Feng , Yu Jia

Recently, ATLAS and CMS experiments at the LHC put on light the relevant results in the measurement precision of the Higgs and BSM. In such a report, where the resonance direct search was made in the $\gamma Z$ channel, a mass adjustment…

高能物理 - 唯象学 · 物理学 2023-06-29 R. Benbrik , M. Boukidi , M. Ouchemhou , L. Rahili , O. Tibssirte
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