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相关论文: Exploring the 2HDM with Global Fits in $\texttt{GA…

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We study the non-minimal composite Higgs model with global symmetry $\text{SO}(7)$ broken to $\text{SO}(5)\times \text{SO}(2)$. The model results in a composite Two-Higgs doublet model (2HDM) equipped with two extra singlets, the lightest…

高能物理 - 唯象学 · 物理学 2019-11-20 Alessandro Davoli , Andrea De Simone , David Marzocca , Alessandro Morandini

We update the constraints on two-Higgs-doublet models (2HDMs) focusing on the parameter space relevant to explain the present muon $g$$-$$2$ anomaly, $\Delta a_{\mu}$, in four different types of models, type I, II, "lepton specific" (or X)…

高能物理 - 唯象学 · 物理学 2015-06-22 Alessandro Broggio , Eung Jin Chun , Massimo Passera , Ketan M. Patel , Sudhir K. Vempati

Updating various theoretical and experimental constraints on the four different types of two-Higgs-doublet models (2HDMs), we find that only the ``lepton-specific" (or ``type X") 2HDM can explain the present muon g$-$2 anomaly in the…

高能物理 - 唯象学 · 物理学 2016-09-21 Eung Jin Chun

We study the constraints of the generic two-Higgs-doublet model (2HDM) type-III and the impacts of the new Yukawa couplings. For comparisons, we revisit the analysis in the 2HDM type-II. To understand the influence of all involving free…

高能物理 - 唯象学 · 物理学 2016-07-20 A. Arhrib , R. Benbrik , Chuan-Hung Chen , M. Gomez-Bock , S. Semlali

We give a comprehensive study from flavor observables of pion, kaon, D_(s), and B_(s) mesons for limiting the Two Higgs Doublet Models (2HDMs) with natural flavor conservation, namely, Z_2 symmetric and aligned type of models. With use of…

高能物理 - 唯象学 · 物理学 2016-07-12 Tetsuya Enomoto , Ryoutaro Watanabe

In this article, we review and update implications of the muon anomalous magnetic moment (muon $g-2$) anomaly for two-Higgs-doublet models (2HDMs), which are classified according to imposed symmetries and their resulting Yukawa sector. In…

高能物理 - 唯象学 · 物理学 2024-01-12 Syuhei Iguro , Teppei Kitahara , Martin S. Lang , Michihisa Takeuchi

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

We briefly survey several typical CP-conserving two-Higgs-doublet models (2HDMs) in light of current experiments. First we derive the masses and couplings of the mass eigenstates from the Lagrangians. Then we analyze the constraints from…

高能物理 - 唯象学 · 物理学 2023-04-11 Lei Wang , Jin Min Yang , Yang Zhang

Two Higgs doublet models (2HDM) provide the low energy effective field theory (EFT) description in many well motivated extensions of the Standard Model. It is therefore relevant to study their properties, as well as the theoretical…

高能物理 - 唯象学 · 物理学 2023-05-03 Henning Bahl , Marcela Carena , Nina M. Coyle , Aurora Ireland , Carlos E. M. Wagner

The extension of the standard model (SM) by a Higgs portal scalar field is one the simplest dark matter theories. We present here the first results for a global fit to this model using the global and beyond the SM inference tool (GAMBIT).…

高能物理 - 唯象学 · 物理学 2022-06-01 James McKay

The usually considered vacuum of the two-Higgs-doublet model (2HDM) could be unstable if it locates at a local but not global minimum (GM) of the scalar potential. By requiring the vacuum to be a GM, we obtain an additional constraint,…

高能物理 - 唯象学 · 物理学 2019-02-20 Ning Chen , Chun Du , Yongcheng Wu , Xun-Jie Xu

The Two Higgs Doublet Model (2HDM) is a simple extension of the Standard Model (SM), which provides a rich and very interesting phenomenology. To remove the undesirable flavour-changing neutral currents (FCNCs), an additional $\mathcal Z_2$…

高能物理 - 唯象学 · 物理学 2025-01-13 Anirban Karan , Antonio Coutinho , Victor Miralles , Antonio Pich

Two-Higgs-doublet models come with an augmented parameter space which allows them to possibly solve some of the shortcomings of the Standard Model, and opens the window to a plethora of new phenomena to be discovered. The introduction of…

高能物理 - 唯象学 · 物理学 2024-10-30 Antonio M. Coutinho , Anirban Karan , Víctor Miralles , Antonio Pich

In these proceedings we review the flavour phenomenology of two-Higgs-doublet models (2HDMs) and connect the results to the decoupling limit of the MSSM. We first study the impact of FCNC constraints on the allowed parameter space of the…

高能物理 - 唯象学 · 物理学 2022-03-02 Andreas Crivellin

In a two-Higgs-doublet model (2HDM), at the vicinity of the alignment limit, the extra contributions to the couplings of the SM-like Higgs with other particles can be subdominant to the same coming from the six dimensional operators. In…

高能物理 - 唯象学 · 物理学 2018-10-17 Siddhartha Karmakar , Subhendu Rakshit

We study the consistency of two Higgs doublet models in light of the new bosonic particle discovery at the LHC. We work within a general setup that we call the 2HDM-X, in which the quarks couple to both scalar doublets with aligned…

高能物理 - 唯象学 · 物理学 2013-07-30 Yang Bai , Vernon Barger , Lisa L. Everett , Gabe Shaughnessy

We perform a comprehensive study of the allowed parameter space of the Two Higgs Doublet Model of Type II (2HDM-II). Using the theoretical framework flavio we combine the most recent flavour, collider and electroweak precision observables…

高能物理 - 唯象学 · 物理学 2022-05-26 Oliver Atkinson , Matthew Black , Alexander Lenz , Aleksey Rusov , James Wynne

Updating various theoretical and experimental constraints on the four different types of two-Higgs-doublet models (2HDMs), we find that only the "lepton-specific" (or "type X") 2HDM can explain the present muon (g-2) anomaly in the…

高能物理 - 唯象学 · 物理学 2015-05-05 Eung Jin Chun

The inert Two Higgs Doublet Model (i2HDM) is a theoretically well-motivated example of a minimal consistent Dark Matter(DM) model which provides mono-jet, mono-Z, mono-Higgs and Vector-Boson-Fusion+Missing Transverse Momentum signatures at…

高能物理 - 唯象学 · 物理学 2020-07-28 Alexander Belyaev , Giacomo Cacciapaglia , Igor P. Ivanov , Felipe Rojas , Marc Thomas

We perform a numerical analysis of Higgs-to-Higgs decays within a Type II 2-Higgs Doublet Model (2HDM), highlighting several channels that cannot occur in its Supersymmetric version, thereby allowing one to possibly distinguish between…

高能物理 - 唯象学 · 物理学 2009-11-19 Shinya Kanemura , Stefano Moretti , Yuki Mukai , Rui Santos , Kei Yagyu